Home / 10,089.52-15,129.68-4,242.94

Finding the Fourth Proportional to 10,089.52, 15,129.68 and 4,242.94

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Solution

The fourth proportional to 10,089.52, 15,129.68 and 4,242.94 is: 6,362.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,089.52 : 15,129.68 = 4,242.94 : x
  2. Step 2: Convert to fraction form
    10,089.52/15,129.68 = 4,242.94/x
  3. Step 3: Cross multiply
    10,089.52x = 15,129.68 × 4,242.94
  4. Step 4: Simplify right side
    10,089.52x = 64,194,324.46
  5. Step 5: Solve for x
    x = 64,194,324.46/10,089.52
  6. Step 6: Final answer
    x = 6,362.48

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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.