Home / 10,920.08-16,375.80-6,306.32

Finding the Fourth Proportional to 10,920.08, 16,375.80 and 6,306.32

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Solution

The fourth proportional to 10,920.08, 16,375.80 and 6,306.32 is: 9,456.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,920.08 : 16,375.80 = 6,306.32 : x
  2. Step 2: Convert to fraction form
    10,920.08/16,375.80 = 6,306.32/x
  3. Step 3: Cross multiply
    10,920.08x = 16,375.80 × 6,306.32
  4. Step 4: Simplify right side
    10,920.08x = 103,271,035.06
  5. Step 5: Solve for x
    x = 103,271,035.06/10,920.08
  6. Step 6: Final answer
    x = 9,456.99

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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.