Home / 12,857.19-17,711.19-10,962.60

Finding the Fourth Proportional to 12,857.19, 17,711.19 and 10,962.60

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Solution

The fourth proportional to 12,857.19, 17,711.19 and 10,962.60 is: 15,101.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,857.19 : 17,711.19 = 10,962.60 : x
  2. Step 2: Convert to fraction form
    12,857.19/17,711.19 = 10,962.60/x
  3. Step 3: Cross multiply
    12,857.19x = 17,711.19 × 10,962.60
  4. Step 4: Simplify right side
    12,857.19x = 194,160,691.49
  5. Step 5: Solve for x
    x = 194,160,691.49/12,857.19
  6. Step 6: Final answer
    x = 15,101.33

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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.