Home / 7,998.20-12,002.70-4,707.80

Finding the Fourth Proportional to 7,998.20, 12,002.70 and 4,707.80

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Solution

The fourth proportional to 7,998.20, 12,002.70 and 4,707.80 is: 7,064.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,998.20 : 12,002.70 = 4,707.80 : x
  2. Step 2: Convert to fraction form
    7,998.20/12,002.70 = 4,707.80/x
  3. Step 3: Cross multiply
    7,998.20x = 12,002.70 × 4,707.80
  4. Step 4: Simplify right side
    7,998.20x = 56,506,311.06
  5. Step 5: Solve for x
    x = 56,506,311.06/7,998.20
  6. Step 6: Final answer
    x = 7,064.88

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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.