Home / 13,347.38-18,419.19-8,045.12

Finding the Fourth Proportional to 13,347.38, 18,419.19 and 8,045.12

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Solution

The fourth proportional to 13,347.38, 18,419.19 and 8,045.12 is: 11,102.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,347.38 : 18,419.19 = 8,045.12 : x
  2. Step 2: Convert to fraction form
    13,347.38/18,419.19 = 8,045.12/x
  3. Step 3: Cross multiply
    13,347.38x = 18,419.19 × 8,045.12
  4. Step 4: Simplify right side
    13,347.38x = 148,184,593.85
  5. Step 5: Solve for x
    x = 148,184,593.85/13,347.38
  6. Step 6: Final answer
    x = 11,102.15

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Half scale
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Double scale
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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.