Home / 15,005.62-22,506.12-5,142.64

Finding the Fourth Proportional to 15,005.62, 22,506.12 and 5,142.64

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Solution

The fourth proportional to 15,005.62, 22,506.12 and 5,142.64 is: 7,713.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,005.62 : 22,506.12 = 5,142.64 : x
  2. Step 2: Convert to fraction form
    15,005.62/22,506.12 = 5,142.64/x
  3. Step 3: Cross multiply
    15,005.62x = 22,506.12 × 5,142.64
  4. Step 4: Simplify right side
    15,005.62x = 115,740,872.96
  5. Step 5: Solve for x
    x = 115,740,872.96/15,005.62
  6. Step 6: Final answer
    x = 7,713.17

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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.