Home / 9,179.02-12,666.55-5,200.04

Finding the Fourth Proportional to 9,179.02, 12,666.55 and 5,200.04

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Solution

The fourth proportional to 9,179.02, 12,666.55 and 5,200.04 is: 7,175.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,179.02 : 12,666.55 = 5,200.04 : x
  2. Step 2: Convert to fraction form
    9,179.02/12,666.55 = 5,200.04/x
  3. Step 3: Cross multiply
    9,179.02x = 12,666.55 × 5,200.04
  4. Step 4: Simplify right side
    9,179.02x = 65,866,585.33
  5. Step 5: Solve for x
    x = 65,866,585.33/9,179.02
  6. Step 6: Final answer
    x = 7,175.78

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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.