Home / 15,045.57-20,762.73-8,331.48

Finding the Fourth Proportional to 15,045.57, 20,762.73 and 8,331.48

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Solution

The fourth proportional to 15,045.57, 20,762.73 and 8,331.48 is: 11,497.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,045.57 : 20,762.73 = 8,331.48 : x
  2. Step 2: Convert to fraction form
    15,045.57/20,762.73 = 8,331.48/x
  3. Step 3: Cross multiply
    15,045.57x = 20,762.73 × 8,331.48
  4. Step 4: Simplify right side
    15,045.57x = 172,984,269.74
  5. Step 5: Solve for x
    x = 172,984,269.74/15,045.57
  6. Step 6: Final answer
    x = 11,497.36

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Similar ratio
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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.