Home / 9,255.67-12,772.50-5,278.06

Finding the Fourth Proportional to 9,255.67, 12,772.50 and 5,278.06

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Solution

The fourth proportional to 9,255.67, 12,772.50 and 5,278.06 is: 7,283.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,255.67 : 12,772.50 = 5,278.06 : x
  2. Step 2: Convert to fraction form
    9,255.67/12,772.50 = 5,278.06/x
  3. Step 3: Cross multiply
    9,255.67x = 12,772.50 × 5,278.06
  4. Step 4: Simplify right side
    9,255.67x = 67,413,989.42
  5. Step 5: Solve for x
    x = 67,413,989.42/9,255.67
  6. Step 6: Final answer
    x = 7,283.54

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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.