Home / 16,151.20-22,289.18-9,778.96

Finding the Fourth Proportional to 16,151.20, 22,289.18 and 9,778.96

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Solution

The fourth proportional to 16,151.20, 22,289.18 and 9,778.96 is: 13,495.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,151.20 : 22,289.18 = 9,778.96 : x
  2. Step 2: Convert to fraction form
    16,151.20/22,289.18 = 9,778.96/x
  3. Step 3: Cross multiply
    16,151.20x = 22,289.18 × 9,778.96
  4. Step 4: Simplify right side
    16,151.20x = 217,964,999.65
  5. Step 5: Solve for x
    x = 217,964,999.65/16,151.20
  6. Step 6: Final answer
    x = 13,495.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.