Home / 13,116.41-18,098.58-7,372.74

Finding the Fourth Proportional to 13,116.41, 18,098.58 and 7,372.74

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Solution

The fourth proportional to 13,116.41, 18,098.58 and 7,372.74 is: 10,173.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,116.41 : 18,098.58 = 7,372.74 : x
  2. Step 2: Convert to fraction form
    13,116.41/18,098.58 = 7,372.74/x
  3. Step 3: Cross multiply
    13,116.41x = 18,098.58 × 7,372.74
  4. Step 4: Simplify right side
    13,116.41x = 133,436,034.22
  5. Step 5: Solve for x
    x = 133,436,034.22/13,116.41
  6. Step 6: Final answer
    x = 10,173.21

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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.