Home / 26,486.85-39,711.03-12,439.65

Finding the Fourth Proportional to 26,486.85, 39,711.03 and 12,439.65

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Solution

The fourth proportional to 26,486.85, 39,711.03 and 12,439.65 is: 18,650.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,486.85 : 39,711.03 = 12,439.65 : x
  2. Step 2: Convert to fraction form
    26,486.85/39,711.03 = 12,439.65/x
  3. Step 3: Cross multiply
    26,486.85x = 39,711.03 × 12,439.65
  4. Step 4: Simplify right side
    26,486.85x = 493,991,314.34
  5. Step 5: Solve for x
    x = 493,991,314.34/26,486.85
  6. Step 6: Final answer
    x = 18,650.44

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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.