Home / 26,526.60-39,789.31-12,478.83

Finding the Fourth Proportional to 26,526.60, 39,789.31 and 12,478.83

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Solution

The fourth proportional to 26,526.60, 39,789.31 and 12,478.83 is: 18,717.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,526.60 : 39,789.31 = 12,478.83 : x
  2. Step 2: Convert to fraction form
    26,526.60/39,789.31 = 12,478.83/x
  3. Step 3: Cross multiply
    26,526.60x = 39,789.31 × 12,478.83
  4. Step 4: Simplify right side
    26,526.60x = 496,523,972.91
  5. Step 5: Solve for x
    x = 496,523,972.91/26,526.60
  6. Step 6: Final answer
    x = 18,717.97

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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.