Home / 10,136.96-15,205.62-5,460.80

Finding the Fourth Proportional to 10,136.96, 15,205.62 and 5,460.80

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Solution

The fourth proportional to 10,136.96, 15,205.62 and 5,460.80 is: 8,191.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,136.96 : 15,205.62 = 5,460.80 : x
  2. Step 2: Convert to fraction form
    10,136.96/15,205.62 = 5,460.80/x
  3. Step 3: Cross multiply
    10,136.96x = 15,205.62 × 5,460.80
  4. Step 4: Simplify right side
    10,136.96x = 83,034,849.70
  5. Step 5: Solve for x
    x = 83,034,849.70/10,136.96
  6. Step 6: Final answer
    x = 8,191.30

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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.