Home / 8,947.40-13,425.39-3,686.24

Finding the Fourth Proportional to 8,947.40, 13,425.39 and 3,686.24

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Solution

The fourth proportional to 8,947.40, 13,425.39 and 3,686.24 is: 5,531.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,947.40 : 13,425.39 = 3,686.24 : x
  2. Step 2: Convert to fraction form
    8,947.40/13,425.39 = 3,686.24/x
  3. Step 3: Cross multiply
    8,947.40x = 13,425.39 × 3,686.24
  4. Step 4: Simplify right side
    8,947.40x = 49,489,243.20
  5. Step 5: Solve for x
    x = 49,489,243.20/8,947.40
  6. Step 6: Final answer
    x = 5,531.13

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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.