Home / 14,160.30-21,248.55-9,780.90

Finding the Fourth Proportional to 14,160.30, 21,248.55 and 9,780.90

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Solution

The fourth proportional to 14,160.30, 21,248.55 and 9,780.90 is: 14,676.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,160.30 : 21,248.55 = 9,780.90 : x
  2. Step 2: Convert to fraction form
    14,160.30/21,248.55 = 9,780.90/x
  3. Step 3: Cross multiply
    14,160.30x = 21,248.55 × 9,780.90
  4. Step 4: Simplify right side
    14,160.30x = 207,829,942.70
  5. Step 5: Solve for x
    x = 207,829,942.70/14,160.30
  6. Step 6: Final answer
    x = 14,676.94

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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.