Home / 15,472.28-21,348.20-10,445.84

Finding the Fourth Proportional to 15,472.28, 21,348.20 and 10,445.84

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Solution

The fourth proportional to 15,472.28, 21,348.20 and 10,445.84 is: 14,412.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,472.28 : 21,348.20 = 10,445.84 : x
  2. Step 2: Convert to fraction form
    15,472.28/21,348.20 = 10,445.84/x
  3. Step 3: Cross multiply
    15,472.28x = 21,348.20 × 10,445.84
  4. Step 4: Simplify right side
    15,472.28x = 222,999,881.49
  5. Step 5: Solve for x
    x = 222,999,881.49/15,472.28
  6. Step 6: Final answer
    x = 14,412.86

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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.