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Finding the Fourth Proportional to 8,071.03, 12,125.57 and 4,747.80

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Solution

The fourth proportional to 8,071.03, 12,125.57 and 4,747.80 is: 7,132.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,071.03 : 12,125.57 = 4,747.80 : x
  2. Step 2: Convert to fraction form
    8,071.03/12,125.57 = 4,747.80/x
  3. Step 3: Cross multiply
    8,071.03x = 12,125.57 × 4,747.80
  4. Step 4: Simplify right side
    8,071.03x = 57,569,734.77
  5. Step 5: Solve for x
    x = 57,569,734.77/8,071.03
  6. Step 6: Final answer
    x = 7,132.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.