Home / 8,523.46-12,780.86-3,902.50

Finding the Fourth Proportional to 8,523.46, 12,780.86 and 3,902.50

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Solution

The fourth proportional to 8,523.46, 12,780.86 and 3,902.50 is: 5,851.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,523.46 : 12,780.86 = 3,902.50 : x
  2. Step 2: Convert to fraction form
    8,523.46/12,780.86 = 3,902.50/x
  3. Step 3: Cross multiply
    8,523.46x = 12,780.86 × 3,902.50
  4. Step 4: Simplify right side
    8,523.46x = 49,877,306.15
  5. Step 5: Solve for x
    x = 49,877,306.15/8,523.46
  6. Step 6: Final answer
    x = 5,851.77

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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.