Home / 9,136.20-13,688.10-7,483.80

Finding the Fourth Proportional to 9,136.20, 13,688.10 and 7,483.80

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Solution

The fourth proportional to 9,136.20, 13,688.10 and 7,483.80 is: 11,212.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,136.20 : 13,688.10 = 7,483.80 : x
  2. Step 2: Convert to fraction form
    9,136.20/13,688.10 = 7,483.80/x
  3. Step 3: Cross multiply
    9,136.20x = 13,688.10 × 7,483.80
  4. Step 4: Simplify right side
    9,136.20x = 102,439,002.78
  5. Step 5: Solve for x
    x = 102,439,002.78/9,136.20
  6. Step 6: Final answer
    x = 11,212.43

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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.