Home / 13,269.38-18,316.52-8,794.57

Finding the Fourth Proportional to 13,269.38, 18,316.52 and 8,794.57

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Solution

The fourth proportional to 13,269.38, 18,316.52 and 8,794.57 is: 12,139.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,269.38 : 18,316.52 = 8,794.57 : x
  2. Step 2: Convert to fraction form
    13,269.38/18,316.52 = 8,794.57/x
  3. Step 3: Cross multiply
    13,269.38x = 18,316.52 × 8,794.57
  4. Step 4: Simplify right side
    13,269.38x = 161,085,925.26
  5. Step 5: Solve for x
    x = 161,085,925.26/13,269.38
  6. Step 6: Final answer
    x = 12,139.68

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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.