Home / 26,121.40-39,178.04-8,591.10

Finding the Fourth Proportional to 26,121.40, 39,178.04 and 8,591.10

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Solution

The fourth proportional to 26,121.40, 39,178.04 and 8,591.10 is: 12,885.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,121.40 : 39,178.04 = 8,591.10 : x
  2. Step 2: Convert to fraction form
    26,121.40/39,178.04 = 8,591.10/x
  3. Step 3: Cross multiply
    26,121.40x = 39,178.04 × 8,591.10
  4. Step 4: Simplify right side
    26,121.40x = 336,582,459.44
  5. Step 5: Solve for x
    x = 336,582,459.44/26,121.40
  6. Step 6: Final answer
    x = 12,885.31

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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.