Home / 11,251.47-16,877.21-2,931.47

Finding the Fourth Proportional to 11,251.47, 16,877.21 and 2,931.47

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Solution

The fourth proportional to 11,251.47, 16,877.21 and 2,931.47 is: 4,397.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,251.47 : 16,877.21 = 2,931.47 : x
  2. Step 2: Convert to fraction form
    11,251.47/16,877.21 = 2,931.47/x
  3. Step 3: Cross multiply
    11,251.47x = 16,877.21 × 2,931.47
  4. Step 4: Simplify right side
    11,251.47x = 49,475,034.80
  5. Step 5: Solve for x
    x = 49,475,034.80/11,251.47
  6. Step 6: Final answer
    x = 4,397.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.