Home / 12,225.12-18,326.52-4,432.20

Finding the Fourth Proportional to 12,225.12, 18,326.52 and 4,432.20

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Solution

The fourth proportional to 12,225.12, 18,326.52 and 4,432.20 is: 6,644.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,225.12 : 18,326.52 = 4,432.20 : x
  2. Step 2: Convert to fraction form
    12,225.12/18,326.52 = 4,432.20/x
  3. Step 3: Cross multiply
    12,225.12x = 18,326.52 × 4,432.20
  4. Step 4: Simplify right side
    12,225.12x = 81,226,801.94
  5. Step 5: Solve for x
    x = 81,226,801.94/12,225.12
  6. Step 6: Final answer
    x = 6,644.25

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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.