Home / 26,136.80-39,209.04-8,602.40

Finding the Fourth Proportional to 26,136.80, 39,209.04 and 8,602.40

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Solution

The fourth proportional to 26,136.80, 39,209.04 and 8,602.40 is: 12,904.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,136.80 : 39,209.04 = 8,602.40 : x
  2. Step 2: Convert to fraction form
    26,136.80/39,209.04 = 8,602.40/x
  3. Step 3: Cross multiply
    26,136.80x = 39,209.04 × 8,602.40
  4. Step 4: Simplify right side
    26,136.80x = 337,291,845.70
  5. Step 5: Solve for x
    x = 337,291,845.70/26,136.80
  6. Step 6: Final answer
    x = 12,904.86

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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.