Home / 9,255.66-12,769.75-5,480.08

Finding the Fourth Proportional to 9,255.66, 12,769.75 and 5,480.08

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Solution

The fourth proportional to 9,255.66, 12,769.75 and 5,480.08 is: 7,560.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,255.66 : 12,769.75 = 5,480.08 : x
  2. Step 2: Convert to fraction form
    9,255.66/12,769.75 = 5,480.08/x
  3. Step 3: Cross multiply
    9,255.66x = 12,769.75 × 5,480.08
  4. Step 4: Simplify right side
    9,255.66x = 69,979,226.51
  5. Step 5: Solve for x
    x = 69,979,226.51/9,255.66
  6. Step 6: Final answer
    x = 7,560.70

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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.