Home / 26,136.15-39,209.70-8,126.21

Finding the Fourth Proportional to 26,136.15, 39,209.70 and 8,126.21

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Solution

The fourth proportional to 26,136.15, 39,209.70 and 8,126.21 is: 12,191.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,136.15 : 39,209.70 = 8,126.21 : x
  2. Step 2: Convert to fraction form
    26,136.15/39,209.70 = 8,126.21/x
  3. Step 3: Cross multiply
    26,136.15x = 39,209.70 × 8,126.21
  4. Step 4: Simplify right side
    26,136.15x = 318,626,060.19
  5. Step 5: Solve for x
    x = 318,626,060.19/26,136.15
  6. Step 6: Final answer
    x = 12,191.01

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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.