Home / 13,646.73-20,472.98-4,287.70

Finding the Fourth Proportional to 13,646.73, 20,472.98 and 4,287.70

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Solution

The fourth proportional to 13,646.73, 20,472.98 and 4,287.70 is: 6,432.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,646.73 : 20,472.98 = 4,287.70 : x
  2. Step 2: Convert to fraction form
    13,646.73/20,472.98 = 4,287.70/x
  3. Step 3: Cross multiply
    13,646.73x = 20,472.98 × 4,287.70
  4. Step 4: Simplify right side
    13,646.73x = 87,781,955.88
  5. Step 5: Solve for x
    x = 87,781,955.88/13,646.73
  6. Step 6: Final answer
    x = 6,432.45

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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.