Home / 13,258.12-18,295.09-7,591.57

Finding the Fourth Proportional to 13,258.12, 18,295.09 and 7,591.57

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Solution

The fourth proportional to 13,258.12, 18,295.09 and 7,591.57 is: 10,475.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,258.12 : 18,295.09 = 7,591.57 : x
  2. Step 2: Convert to fraction form
    13,258.12/18,295.09 = 7,591.57/x
  3. Step 3: Cross multiply
    13,258.12x = 18,295.09 × 7,591.57
  4. Step 4: Simplify right side
    13,258.12x = 138,888,456.39
  5. Step 5: Solve for x
    x = 138,888,456.39/13,258.12
  6. Step 6: Final answer
    x = 10,475.73

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Half scale
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Double scale
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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.