Home / 26,439.96-39,660.12-8,909.76

Finding the Fourth Proportional to 26,439.96, 39,660.12 and 8,909.76

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Solution

The fourth proportional to 26,439.96, 39,660.12 and 8,909.76 is: 13,364.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,439.96 : 39,660.12 = 8,909.76 : x
  2. Step 2: Convert to fraction form
    26,439.96/39,660.12 = 8,909.76/x
  3. Step 3: Cross multiply
    26,439.96x = 39,660.12 × 8,909.76
  4. Step 4: Simplify right side
    26,439.96x = 353,362,150.77
  5. Step 5: Solve for x
    x = 353,362,150.77/26,439.96
  6. Step 6: Final answer
    x = 13,364.70

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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.