Home / 16,188.64-22,340.40-9,115.18

Finding the Fourth Proportional to 16,188.64, 22,340.40 and 9,115.18

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Solution

The fourth proportional to 16,188.64, 22,340.40 and 9,115.18 is: 12,578.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,188.64 : 22,340.40 = 9,115.18 : x
  2. Step 2: Convert to fraction form
    16,188.64/22,340.40 = 9,115.18/x
  3. Step 3: Cross multiply
    16,188.64x = 22,340.40 × 9,115.18
  4. Step 4: Simplify right side
    16,188.64x = 203,636,767.27
  5. Step 5: Solve for x
    x = 203,636,767.27/16,188.64
  6. Step 6: Final answer
    x = 12,578.99

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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.