Home / 8,785.59-13,178.39-3,590.25

Finding the Fourth Proportional to 8,785.59, 13,178.39 and 3,590.25

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Solution

The fourth proportional to 8,785.59, 13,178.39 and 3,590.25 is: 5,385.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785.59 : 13,178.39 = 3,590.25 : x
  2. Step 2: Convert to fraction form
    8,785.59/13,178.39 = 3,590.25/x
  3. Step 3: Cross multiply
    8,785.59x = 13,178.39 × 3,590.25
  4. Step 4: Simplify right side
    8,785.59x = 47,313,696.75
  5. Step 5: Solve for x
    x = 47,313,696.75/8,785.59
  6. Step 6: Final answer
    x = 5,385.38

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.