Home / 16,772.65-23,144.88-9,218.59

Finding the Fourth Proportional to 16,772.65, 23,144.88 and 9,218.59

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Solution

The fourth proportional to 16,772.65, 23,144.88 and 9,218.59 is: 12,720.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,772.65 : 23,144.88 = 9,218.59 : x
  2. Step 2: Convert to fraction form
    16,772.65/23,144.88 = 9,218.59/x
  3. Step 3: Cross multiply
    16,772.65x = 23,144.88 × 9,218.59
  4. Step 4: Simplify right side
    16,772.65x = 213,363,159.32
  5. Step 5: Solve for x
    x = 213,363,159.32/16,772.65
  6. Step 6: Final answer
    x = 12,720.90

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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.