Home / 8,387.38-12,564.57-5,574.36

Finding the Fourth Proportional to 8,387.38, 12,564.57 and 5,574.36

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Solution

The fourth proportional to 8,387.38, 12,564.57 and 5,574.36 is: 8,350.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,387.38 : 12,564.57 = 5,574.36 : x
  2. Step 2: Convert to fraction form
    8,387.38/12,564.57 = 5,574.36/x
  3. Step 3: Cross multiply
    8,387.38x = 12,564.57 × 5,574.36
  4. Step 4: Simplify right side
    8,387.38x = 70,039,436.43
  5. Step 5: Solve for x
    x = 70,039,436.43/8,387.38
  6. Step 6: Final answer
    x = 8,350.57

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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.