Home / 26,109.40-39,164.10-6,387.70

Finding the Fourth Proportional to 26,109.40, 39,164.10 and 6,387.70

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Solution

The fourth proportional to 26,109.40, 39,164.10 and 6,387.70 is: 9,581.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,109.40 : 39,164.10 = 6,387.70 : x
  2. Step 2: Convert to fraction form
    26,109.40/39,164.10 = 6,387.70/x
  3. Step 3: Cross multiply
    26,109.40x = 39,164.10 × 6,387.70
  4. Step 4: Simplify right side
    26,109.40x = 250,168,521.57
  5. Step 5: Solve for x
    x = 250,168,521.57/26,109.40
  6. Step 6: Final answer
    x = 9,581.55

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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.