Home / 11,522.30-15,900.14-6,486.74

Finding the Fourth Proportional to 11,522.30, 15,900.14 and 6,486.74

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Solution

The fourth proportional to 11,522.30, 15,900.14 and 6,486.74 is: 8,951.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,522.30 : 15,900.14 = 6,486.74 : x
  2. Step 2: Convert to fraction form
    11,522.30/15,900.14 = 6,486.74/x
  3. Step 3: Cross multiply
    11,522.30x = 15,900.14 × 6,486.74
  4. Step 4: Simplify right side
    11,522.30x = 103,140,074.14
  5. Step 5: Solve for x
    x = 103,140,074.14/11,522.30
  6. Step 6: Final answer
    x = 8,951.34

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.