Home / 11,165.19-15,408.16-6,129.89

Finding the Fourth Proportional to 11,165.19, 15,408.16 and 6,129.89

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Solution

The fourth proportional to 11,165.19, 15,408.16 and 6,129.89 is: 8,459.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,165.19 : 15,408.16 = 6,129.89 : x
  2. Step 2: Convert to fraction form
    11,165.19/15,408.16 = 6,129.89/x
  3. Step 3: Cross multiply
    11,165.19x = 15,408.16 × 6,129.89
  4. Step 4: Simplify right side
    11,165.19x = 94,450,233.54
  5. Step 5: Solve for x
    x = 94,450,233.54/11,165.19
  6. Step 6: Final answer
    x = 8,459.35

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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.