Home / 26,115.40-39,164.80-8,581.12

Finding the Fourth Proportional to 26,115.40, 39,164.80 and 8,581.12

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Solution

The fourth proportional to 26,115.40, 39,164.80 and 8,581.12 is: 12,868.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,115.40 : 39,164.80 = 8,581.12 : x
  2. Step 2: Convert to fraction form
    26,115.40/39,164.80 = 8,581.12/x
  3. Step 3: Cross multiply
    26,115.40x = 39,164.80 × 8,581.12
  4. Step 4: Simplify right side
    26,115.40x = 336,077,848.58
  5. Step 5: Solve for x
    x = 336,077,848.58/26,115.40
  6. Step 6: Final answer
    x = 12,868.95

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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.