Home / 13,357.35-18,439.26-9,531.90

Finding the Fourth Proportional to 13,357.35, 18,439.26 and 9,531.90

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Solution

The fourth proportional to 13,357.35, 18,439.26 and 9,531.90 is: 13,158.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,357.35 : 18,439.26 = 9,531.90 : x
  2. Step 2: Convert to fraction form
    13,357.35/18,439.26 = 9,531.90/x
  3. Step 3: Cross multiply
    13,357.35x = 18,439.26 × 9,531.90
  4. Step 4: Simplify right side
    13,357.35x = 175,761,182.39
  5. Step 5: Solve for x
    x = 175,761,182.39/13,357.35
  6. Step 6: Final answer
    x = 13,158.39

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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.