Home / 8,868.11-12,238.85-5,331.25

Finding the Fourth Proportional to 8,868.11, 12,238.85 and 5,331.25

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Solution

The fourth proportional to 8,868.11, 12,238.85 and 5,331.25 is: 7,357.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,868.11 : 12,238.85 = 5,331.25 : x
  2. Step 2: Convert to fraction form
    8,868.11/12,238.85 = 5,331.25/x
  3. Step 3: Cross multiply
    8,868.11x = 12,238.85 × 5,331.25
  4. Step 4: Simplify right side
    8,868.11x = 65,248,281.21
  5. Step 5: Solve for x
    x = 65,248,281.21/8,868.11
  6. Step 6: Final answer
    x = 7,357.63

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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.