Home / 15,459.96-21,331.19-8,744.13

Finding the Fourth Proportional to 15,459.96, 21,331.19 and 8,744.13

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Solution

The fourth proportional to 15,459.96, 21,331.19 and 8,744.13 is: 12,064.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,459.96 : 21,331.19 = 8,744.13 : x
  2. Step 2: Convert to fraction form
    15,459.96/21,331.19 = 8,744.13/x
  3. Step 3: Cross multiply
    15,459.96x = 21,331.19 × 8,744.13
  4. Step 4: Simplify right side
    15,459.96x = 186,522,654.69
  5. Step 5: Solve for x
    x = 186,522,654.69/15,459.96
  6. Step 6: Final answer
    x = 12,064.89

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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.