Home / 8,731.14-12,049.56-5,329.59

Finding the Fourth Proportional to 8,731.14, 12,049.56 and 5,329.59

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Solution

The fourth proportional to 8,731.14, 12,049.56 and 5,329.59 is: 7,355.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,731.14 : 12,049.56 = 5,329.59 : x
  2. Step 2: Convert to fraction form
    8,731.14/12,049.56 = 5,329.59/x
  3. Step 3: Cross multiply
    8,731.14x = 12,049.56 × 5,329.59
  4. Step 4: Simplify right side
    8,731.14x = 64,219,214.48
  5. Step 5: Solve for x
    x = 64,219,214.48/8,731.14
  6. Step 6: Final answer
    x = 7,355.19

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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.