Home / 12,460.31-18,687.28-3,693.17

Finding the Fourth Proportional to 12,460.31, 18,687.28 and 3,693.17

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Solution

The fourth proportional to 12,460.31, 18,687.28 and 3,693.17 is: 5,538.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,460.31 : 18,687.28 = 3,693.17 : x
  2. Step 2: Convert to fraction form
    12,460.31/18,687.28 = 3,693.17/x
  3. Step 3: Cross multiply
    12,460.31x = 18,687.28 × 3,693.17
  4. Step 4: Simplify right side
    12,460.31x = 69,015,208.44
  5. Step 5: Solve for x
    x = 69,015,208.44/12,460.31
  6. Step 6: Final answer
    x = 5,538.81

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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.