Home / 11,148.68-15,350.10-8,487.56

Finding the Fourth Proportional to 11,148.68, 15,350.10 and 8,487.56

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Solution

The fourth proportional to 11,148.68, 15,350.10 and 8,487.56 is: 11,686.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,148.68 : 15,350.10 = 8,487.56 : x
  2. Step 2: Convert to fraction form
    11,148.68/15,350.10 = 8,487.56/x
  3. Step 3: Cross multiply
    11,148.68x = 15,350.10 × 8,487.56
  4. Step 4: Simplify right side
    11,148.68x = 130,284,894.76
  5. Step 5: Solve for x
    x = 130,284,894.76/11,148.68
  6. Step 6: Final answer
    x = 11,686.13

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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.