Home / 10,127.78-15,141.75-8,585.04

Finding the Fourth Proportional to 10,127.78, 15,141.75 and 8,585.04

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Solution

The fourth proportional to 10,127.78, 15,141.75 and 8,585.04 is: 12,835.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,127.78 : 15,141.75 = 8,585.04 : x
  2. Step 2: Convert to fraction form
    10,127.78/15,141.75 = 8,585.04/x
  3. Step 3: Cross multiply
    10,127.78x = 15,141.75 × 8,585.04
  4. Step 4: Simplify right side
    10,127.78x = 129,992,529.42
  5. Step 5: Solve for x
    x = 129,992,529.42/10,127.78
  6. Step 6: Final answer
    x = 12,835.24

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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.