Home / 8,629.60-11,908.48-5,278.08

Finding the Fourth Proportional to 8,629.60, 11,908.48 and 5,278.08

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Solution

The fourth proportional to 8,629.60, 11,908.48 and 5,278.08 is: 7,283.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,629.60 : 11,908.48 = 5,278.08 : x
  2. Step 2: Convert to fraction form
    8,629.60/11,908.48 = 5,278.08/x
  3. Step 3: Cross multiply
    8,629.60x = 11,908.48 × 5,278.08
  4. Step 4: Simplify right side
    8,629.60x = 62,853,910.12
  5. Step 5: Solve for x
    x = 62,853,910.12/8,629.60
  6. Step 6: Final answer
    x = 7,283.53

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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.