Home / 8,512.40-11,747.08-4,974.90

Finding the Fourth Proportional to 8,512.40, 11,747.08 and 4,974.90

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Solution

The fourth proportional to 8,512.40, 11,747.08 and 4,974.90 is: 6,865.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,512.40 : 11,747.08 = 4,974.90 : x
  2. Step 2: Convert to fraction form
    8,512.40/11,747.08 = 4,974.90/x
  3. Step 3: Cross multiply
    8,512.40x = 11,747.08 × 4,974.90
  4. Step 4: Simplify right side
    8,512.40x = 58,440,548.29
  5. Step 5: Solve for x
    x = 58,440,548.29/8,512.40
  6. Step 6: Final answer
    x = 6,865.34

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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.