Home / 16,188.15-22,340.68-9,815.35

Finding the Fourth Proportional to 16,188.15, 22,340.68 and 9,815.35

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Solution

The fourth proportional to 16,188.15, 22,340.68 and 9,815.35 is: 13,545.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,188.15 : 22,340.68 = 9,815.35 : x
  2. Step 2: Convert to fraction form
    16,188.15/22,340.68 = 9,815.35/x
  3. Step 3: Cross multiply
    16,188.15x = 22,340.68 × 9,815.35
  4. Step 4: Simplify right side
    16,188.15x = 219,281,544.36
  5. Step 5: Solve for x
    x = 219,281,544.36/16,188.15
  6. Step 6: Final answer
    x = 13,545.81

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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.