Home / 9,189.89-12,681.96-4,998.14

Finding the Fourth Proportional to 9,189.89, 12,681.96 and 4,998.14

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Solution

The fourth proportional to 9,189.89, 12,681.96 and 4,998.14 is: 6,897.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,189.89 : 12,681.96 = 4,998.14 : x
  2. Step 2: Convert to fraction form
    9,189.89/12,681.96 = 4,998.14/x
  3. Step 3: Cross multiply
    9,189.89x = 12,681.96 × 4,998.14
  4. Step 4: Simplify right side
    9,189.89x = 63,386,148.14
  5. Step 5: Solve for x
    x = 63,386,148.14/9,189.89
  6. Step 6: Final answer
    x = 6,897.38

Related Problems

Find fourth proportional to 4,594.94, 6,340.98 and 2,499.07
Half scale
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Double scale
Find fourth proportional to 9,190.89, 12,683.34 and 4,999.14
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.