Home / 8,254.90-11,391.72-4,478.06

Finding the Fourth Proportional to 8,254.90, 11,391.72 and 4,478.06

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Solution

The fourth proportional to 8,254.90, 11,391.72 and 4,478.06 is: 6,179.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,254.90 : 11,391.72 = 4,478.06 : x
  2. Step 2: Convert to fraction form
    8,254.90/11,391.72 = 4,478.06/x
  3. Step 3: Cross multiply
    8,254.90x = 11,391.72 × 4,478.06
  4. Step 4: Simplify right side
    8,254.90x = 51,012,805.66
  5. Step 5: Solve for x
    x = 51,012,805.66/8,254.90
  6. Step 6: Final answer
    x = 6,179.70

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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.