Home / 7,972.76-11,002.20-4,615.11

Finding the Fourth Proportional to 7,972.76, 11,002.20 and 4,615.11

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Solution

The fourth proportional to 7,972.76, 11,002.20 and 4,615.11 is: 6,368.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,972.76 : 11,002.20 = 4,615.11 : x
  2. Step 2: Convert to fraction form
    7,972.76/11,002.20 = 4,615.11/x
  3. Step 3: Cross multiply
    7,972.76x = 11,002.20 × 4,615.11
  4. Step 4: Simplify right side
    7,972.76x = 50,776,363.24
  5. Step 5: Solve for x
    x = 50,776,363.24/7,972.76
  6. Step 6: Final answer
    x = 6,368.73

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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.