Home / 12,165.58-18,248.36-3,400.72

Finding the Fourth Proportional to 12,165.58, 18,248.36 and 3,400.72

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Solution

The fourth proportional to 12,165.58, 18,248.36 and 3,400.72 is: 5,101.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,165.58 : 18,248.36 = 3,400.72 : x
  2. Step 2: Convert to fraction form
    12,165.58/18,248.36 = 3,400.72/x
  3. Step 3: Cross multiply
    12,165.58x = 18,248.36 × 3,400.72
  4. Step 4: Simplify right side
    12,165.58x = 62,057,562.82
  5. Step 5: Solve for x
    x = 62,057,562.82/12,165.58
  6. Step 6: Final answer
    x = 5,101.08

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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.