Home / 11,729.43-17,503.20-10,681.70

Finding the Fourth Proportional to 11,729.43, 17,503.20 and 10,681.70

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Solution

The fourth proportional to 11,729.43, 17,503.20 and 10,681.70 is: 15,939.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,729.43 : 17,503.20 = 10,681.70 : x
  2. Step 2: Convert to fraction form
    11,729.43/17,503.20 = 10,681.70/x
  3. Step 3: Cross multiply
    11,729.43x = 17,503.20 × 10,681.70
  4. Step 4: Simplify right side
    11,729.43x = 186,963,843.92
  5. Step 5: Solve for x
    x = 186,963,843.92/11,729.43
  6. Step 6: Final answer
    x = 15,939.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.