Home / 9,189.92-12,681.96-4,998.08

Finding the Fourth Proportional to 9,189.92, 12,681.96 and 4,998.08

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Solution

The fourth proportional to 9,189.92, 12,681.96 and 4,998.08 is: 6,897.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,189.92 : 12,681.96 = 4,998.08 : x
  2. Step 2: Convert to fraction form
    9,189.92/12,681.96 = 4,998.08/x
  3. Step 3: Cross multiply
    9,189.92x = 12,681.96 × 4,998.08
  4. Step 4: Simplify right side
    9,189.92x = 63,385,450.64
  5. Step 5: Solve for x
    x = 63,385,450.64/9,189.92
  6. Step 6: Final answer
    x = 6,897.28

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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.