Home / 11,403.40-15,732.22-6,622.53

Finding the Fourth Proportional to 11,403.40, 15,732.22 and 6,622.53

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Solution

The fourth proportional to 11,403.40, 15,732.22 and 6,622.53 is: 9,136.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,403.40 : 15,732.22 = 6,622.53 : x
  2. Step 2: Convert to fraction form
    11,403.40/15,732.22 = 6,622.53/x
  3. Step 3: Cross multiply
    11,403.40x = 15,732.22 × 6,622.53
  4. Step 4: Simplify right side
    11,403.40x = 104,187,098.92
  5. Step 5: Solve for x
    x = 104,187,098.92/11,403.40
  6. Step 6: Final answer
    x = 9,136.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.