Home / 14,729.73-20,328.38-8,358.40

Finding the Fourth Proportional to 14,729.73, 20,328.38 and 8,358.40

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Solution

The fourth proportional to 14,729.73, 20,328.38 and 8,358.40 is: 11,535.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,729.73 : 20,328.38 = 8,358.40 : x
  2. Step 2: Convert to fraction form
    14,729.73/20,328.38 = 8,358.40/x
  3. Step 3: Cross multiply
    14,729.73x = 20,328.38 × 8,358.40
  4. Step 4: Simplify right side
    14,729.73x = 169,912,731.39
  5. Step 5: Solve for x
    x = 169,912,731.39/14,729.73
  6. Step 6: Final answer
    x = 11,535.36

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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.