Home / 7,989.11-11,013.85-5,002.94

Finding the Fourth Proportional to 7,989.11, 11,013.85 and 5,002.94

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Solution

The fourth proportional to 7,989.11, 11,013.85 and 5,002.94 is: 6,897.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989.11 : 11,013.85 = 5,002.94 : x
  2. Step 2: Convert to fraction form
    7,989.11/11,013.85 = 5,002.94/x
  3. Step 3: Cross multiply
    7,989.11x = 11,013.85 × 5,002.94
  4. Step 4: Simplify right side
    7,989.11x = 55,101,630.72
  5. Step 5: Solve for x
    x = 55,101,630.72/7,989.11
  6. Step 6: Final answer
    x = 6,897.09

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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.