Home / 8,377.10-12,554.70-4,221.80

Finding the Fourth Proportional to 8,377.10, 12,554.70 and 4,221.80

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Solution

The fourth proportional to 8,377.10, 12,554.70 and 4,221.80 is: 6,327.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,377.10 : 12,554.70 = 4,221.80 : x
  2. Step 2: Convert to fraction form
    8,377.10/12,554.70 = 4,221.80/x
  3. Step 3: Cross multiply
    8,377.10x = 12,554.70 × 4,221.80
  4. Step 4: Simplify right side
    8,377.10x = 53,003,432.46
  5. Step 5: Solve for x
    x = 53,003,432.46/8,377.10
  6. Step 6: Final answer
    x = 6,327.18

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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.