Home / 9,189.74-12,681.81-4,997.99

Finding the Fourth Proportional to 9,189.74, 12,681.81 and 4,997.99

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Solution

The fourth proportional to 9,189.74, 12,681.81 and 4,997.99 is: 6,897.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,189.74 : 12,681.81 = 4,997.99 : x
  2. Step 2: Convert to fraction form
    9,189.74/12,681.81 = 4,997.99/x
  3. Step 3: Cross multiply
    9,189.74x = 12,681.81 × 4,997.99
  4. Step 4: Simplify right side
    9,189.74x = 63,383,496.15
  5. Step 5: Solve for x
    x = 63,383,496.15/9,189.74
  6. Step 6: Final answer
    x = 6,897.21

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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.