Home / 26,145.40-39,218.10-6,423.70

Finding the Fourth Proportional to 26,145.40, 39,218.10 and 6,423.70

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Solution

The fourth proportional to 26,145.40, 39,218.10 and 6,423.70 is: 9,635.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,145.40 : 39,218.10 = 6,423.70 : x
  2. Step 2: Convert to fraction form
    26,145.40/39,218.10 = 6,423.70/x
  3. Step 3: Cross multiply
    26,145.40x = 39,218.10 × 6,423.70
  4. Step 4: Simplify right side
    26,145.40x = 251,925,308.97
  5. Step 5: Solve for x
    x = 251,925,308.97/26,145.40
  6. Step 6: Final answer
    x = 9,635.55

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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.