Home / 15,141.72-22,706.10-5,278.08

Finding the Fourth Proportional to 15,141.72, 22,706.10 and 5,278.08

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Solution

The fourth proportional to 15,141.72, 22,706.10 and 5,278.08 is: 7,914.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,141.72 : 22,706.10 = 5,278.08 : x
  2. Step 2: Convert to fraction form
    15,141.72/22,706.10 = 5,278.08/x
  3. Step 3: Cross multiply
    15,141.72x = 22,706.10 × 5,278.08
  4. Step 4: Simplify right side
    15,141.72x = 119,844,612.29
  5. Step 5: Solve for x
    x = 119,844,612.29/15,141.72
  6. Step 6: Final answer
    x = 7,914.86

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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.