Home / 12,997.55-17,915.47-10,159.92

Finding the Fourth Proportional to 12,997.55, 17,915.47 and 10,159.92

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Solution

The fourth proportional to 12,997.55, 17,915.47 and 10,159.92 is: 14,004.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,997.55 : 17,915.47 = 10,159.92 : x
  2. Step 2: Convert to fraction form
    12,997.55/17,915.47 = 10,159.92/x
  3. Step 3: Cross multiply
    12,997.55x = 17,915.47 × 10,159.92
  4. Step 4: Simplify right side
    12,997.55x = 182,019,716.56
  5. Step 5: Solve for x
    x = 182,019,716.56/12,997.55
  6. Step 6: Final answer
    x = 14,004.15

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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.