Home / 15,337.62-21,166.38-9,961.38

Finding the Fourth Proportional to 15,337.62, 21,166.38 and 9,961.38

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Solution

The fourth proportional to 15,337.62, 21,166.38 and 9,961.38 is: 13,747.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,337.62 : 21,166.38 = 9,961.38 : x
  2. Step 2: Convert to fraction form
    15,337.62/21,166.38 = 9,961.38/x
  3. Step 3: Cross multiply
    15,337.62x = 21,166.38 × 9,961.38
  4. Step 4: Simplify right side
    15,337.62x = 210,846,354.40
  5. Step 5: Solve for x
    x = 210,846,354.40/15,337.62
  6. Step 6: Final answer
    x = 13,747.01

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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.