Home / 15,507.85-23,261.78-11,115.85

Finding the Fourth Proportional to 15,507.85, 23,261.78 and 11,115.85

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Solution

The fourth proportional to 15,507.85, 23,261.78 and 11,115.85 is: 16,673.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,507.85 : 23,261.78 = 11,115.85 : x
  2. Step 2: Convert to fraction form
    15,507.85/23,261.78 = 11,115.85/x
  3. Step 3: Cross multiply
    15,507.85x = 23,261.78 × 11,115.85
  4. Step 4: Simplify right side
    15,507.85x = 258,574,401.63
  5. Step 5: Solve for x
    x = 258,574,401.63/15,507.85
  6. Step 6: Final answer
    x = 16,673.78

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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.