Home / 12,432.40-18,632.04-4,633.36

Finding the Fourth Proportional to 12,432.40, 18,632.04 and 4,633.36

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Solution

The fourth proportional to 12,432.40, 18,632.04 and 4,633.36 is: 6,943.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,432.40 : 18,632.04 = 4,633.36 : x
  2. Step 2: Convert to fraction form
    12,432.40/18,632.04 = 4,633.36/x
  3. Step 3: Cross multiply
    12,432.40x = 18,632.04 × 4,633.36
  4. Step 4: Simplify right side
    12,432.40x = 86,328,948.85
  5. Step 5: Solve for x
    x = 86,328,948.85/12,432.40
  6. Step 6: Final answer
    x = 6,943.87

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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.