Home / 10,929.06-16,379.55-4,687.47

Finding the Fourth Proportional to 10,929.06, 16,379.55 and 4,687.47

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Solution

The fourth proportional to 10,929.06, 16,379.55 and 4,687.47 is: 7,025.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,929.06 : 16,379.55 = 4,687.47 : x
  2. Step 2: Convert to fraction form
    10,929.06/16,379.55 = 4,687.47/x
  3. Step 3: Cross multiply
    10,929.06x = 16,379.55 × 4,687.47
  4. Step 4: Simplify right side
    10,929.06x = 76,778,649.24
  5. Step 5: Solve for x
    x = 76,778,649.24/10,929.06
  6. Step 6: Final answer
    x = 7,025.18

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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.