Home / 10,747.60-16,121.40-7,248.40

Finding the Fourth Proportional to 10,747.60, 16,121.40 and 7,248.40

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Solution

The fourth proportional to 10,747.60, 16,121.40 and 7,248.40 is: 10,872.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,747.60 : 16,121.40 = 7,248.40 : x
  2. Step 2: Convert to fraction form
    10,747.60/16,121.40 = 7,248.40/x
  3. Step 3: Cross multiply
    10,747.60x = 16,121.40 × 7,248.40
  4. Step 4: Simplify right side
    10,747.60x = 116,854,355.76
  5. Step 5: Solve for x
    x = 116,854,355.76/10,747.60
  6. Step 6: Final answer
    x = 10,872.60

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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.