Home / 13,216.60-18,238.86-7,248.12

Finding the Fourth Proportional to 13,216.60, 18,238.86 and 7,248.12

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Solution

The fourth proportional to 13,216.60, 18,238.86 and 7,248.12 is: 10,002.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,216.60 : 18,238.86 = 7,248.12 : x
  2. Step 2: Convert to fraction form
    13,216.60/18,238.86 = 7,248.12/x
  3. Step 3: Cross multiply
    13,216.60x = 18,238.86 × 7,248.12
  4. Step 4: Simplify right side
    13,216.60x = 132,197,445.94
  5. Step 5: Solve for x
    x = 132,197,445.94/13,216.60
  6. Step 6: Final answer
    x = 10,002.38

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Half scale
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Double scale
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Similar ratio
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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.