Home / 15,153.52-20,903.72-10,306.48

Finding the Fourth Proportional to 15,153.52, 20,903.72 and 10,306.48

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Solution

The fourth proportional to 15,153.52, 20,903.72 and 10,306.48 is: 14,217.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,153.52 : 20,903.72 = 10,306.48 : x
  2. Step 2: Convert to fraction form
    15,153.52/20,903.72 = 10,306.48/x
  3. Step 3: Cross multiply
    15,153.52x = 20,903.72 × 10,306.48
  4. Step 4: Simplify right side
    15,153.52x = 215,443,772.11
  5. Step 5: Solve for x
    x = 215,443,772.11/15,153.52
  6. Step 6: Final answer
    x = 14,217.41

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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.