Home / 13,549.56-18,666.18-12,882.48

Finding the Fourth Proportional to 13,549.56, 18,666.18 and 12,882.48

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Solution

The fourth proportional to 13,549.56, 18,666.18 and 12,882.48 is: 17,747.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,549.56 : 18,666.18 = 12,882.48 : x
  2. Step 2: Convert to fraction form
    13,549.56/18,666.18 = 12,882.48/x
  3. Step 3: Cross multiply
    13,549.56x = 18,666.18 × 12,882.48
  4. Step 4: Simplify right side
    13,549.56x = 240,466,690.53
  5. Step 5: Solve for x
    x = 240,466,690.53/13,549.56
  6. Step 6: Final answer
    x = 17,747.20

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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.