Home / 15,306.71-21,124.20-10,193.46

Finding the Fourth Proportional to 15,306.71, 21,124.20 and 10,193.46

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Solution

The fourth proportional to 15,306.71, 21,124.20 and 10,193.46 is: 14,067.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,306.71 : 21,124.20 = 10,193.46 : x
  2. Step 2: Convert to fraction form
    15,306.71/21,124.20 = 10,193.46/x
  3. Step 3: Cross multiply
    15,306.71x = 21,124.20 × 10,193.46
  4. Step 4: Simplify right side
    15,306.71x = 215,328,673.15
  5. Step 5: Solve for x
    x = 215,328,673.15/15,306.71
  6. Step 6: Final answer
    x = 14,067.60

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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.