Home / 12,475.71-18,710.81-3,589.07

Finding the Fourth Proportional to 12,475.71, 18,710.81 and 3,589.07

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Solution

The fourth proportional to 12,475.71, 18,710.81 and 3,589.07 is: 5,382.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,475.71 : 18,710.81 = 3,589.07 : x
  2. Step 2: Convert to fraction form
    12,475.71/18,710.81 = 3,589.07/x
  3. Step 3: Cross multiply
    12,475.71x = 18,710.81 × 3,589.07
  4. Step 4: Simplify right side
    12,475.71x = 67,154,406.85
  5. Step 5: Solve for x
    x = 67,154,406.85/12,475.71
  6. Step 6: Final answer
    x = 5,382.81

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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.