Home / 15,385.89-23,078.83-3,699.11

Finding the Fourth Proportional to 15,385.89, 23,078.83 and 3,699.11

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Solution

The fourth proportional to 15,385.89, 23,078.83 and 3,699.11 is: 5,548.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,385.89 : 23,078.83 = 3,699.11 : x
  2. Step 2: Convert to fraction form
    15,385.89/23,078.83 = 3,699.11/x
  3. Step 3: Cross multiply
    15,385.89x = 23,078.83 × 3,699.11
  4. Step 4: Simplify right side
    15,385.89x = 85,371,026.55
  5. Step 5: Solve for x
    x = 85,371,026.55/15,385.89
  6. Step 6: Final answer
    x = 5,548.66

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Half scale
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Double scale
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Similar ratio
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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.