Home / 15,045.03-20,761.89-8,330.51

Finding the Fourth Proportional to 15,045.03, 20,761.89 and 8,330.51

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Solution

The fourth proportional to 15,045.03, 20,761.89 and 8,330.51 is: 11,495.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,045.03 : 20,761.89 = 8,330.51 : x
  2. Step 2: Convert to fraction form
    15,045.03/20,761.89 = 8,330.51/x
  3. Step 3: Cross multiply
    15,045.03x = 20,761.89 × 8,330.51
  4. Step 4: Simplify right side
    15,045.03x = 172,957,132.26
  5. Step 5: Solve for x
    x = 172,957,132.26/15,045.03
  6. Step 6: Final answer
    x = 11,495.96

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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.