Home / 12,230.90-18,346.35-6,386.14

Finding the Fourth Proportional to 12,230.90, 18,346.35 and 6,386.14

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Solution

The fourth proportional to 12,230.90, 18,346.35 and 6,386.14 is: 9,579.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,230.90 : 18,346.35 = 6,386.14 : x
  2. Step 2: Convert to fraction form
    12,230.90/18,346.35 = 6,386.14/x
  3. Step 3: Cross multiply
    12,230.90x = 18,346.35 × 6,386.14
  4. Step 4: Simplify right side
    12,230.90x = 117,162,359.59
  5. Step 5: Solve for x
    x = 117,162,359.59/12,230.90
  6. Step 6: Final answer
    x = 9,579.21

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