Home / 26,188.30-39,278.13-12,147.76

Finding the Fourth Proportional to 26,188.30, 39,278.13 and 12,147.76

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Solution

The fourth proportional to 26,188.30, 39,278.13 and 12,147.76 is: 18,219.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,188.30 : 39,278.13 = 12,147.76 : x
  2. Step 2: Convert to fraction form
    26,188.30/39,278.13 = 12,147.76/x
  3. Step 3: Cross multiply
    26,188.30x = 39,278.13 × 12,147.76
  4. Step 4: Simplify right side
    26,188.30x = 477,141,296.49
  5. Step 5: Solve for x
    x = 477,141,296.49/26,188.30
  6. Step 6: Final answer
    x = 18,219.64

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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.