Home / 16,143.35-22,279.22-9,431.14

Finding the Fourth Proportional to 16,143.35, 22,279.22 and 9,431.14

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Solution

The fourth proportional to 16,143.35, 22,279.22 and 9,431.14 is: 13,015.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,143.35 : 22,279.22 = 9,431.14 : x
  2. Step 2: Convert to fraction form
    16,143.35/22,279.22 = 9,431.14/x
  3. Step 3: Cross multiply
    16,143.35x = 22,279.22 × 9,431.14
  4. Step 4: Simplify right side
    16,143.35x = 210,118,442.91
  5. Step 5: Solve for x
    x = 210,118,442.91/16,143.35
  6. Step 6: Final answer
    x = 13,015.79

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Half scale
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Double scale
Find fourth proportional to 16,144.35, 22,280.60 and 9,432.14
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.