Home / 8,729.75-12,045.84-5,373.11

Finding the Fourth Proportional to 8,729.75, 12,045.84 and 5,373.11

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Solution

The fourth proportional to 8,729.75, 12,045.84 and 5,373.11 is: 7,414.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,729.75 : 12,045.84 = 5,373.11 : x
  2. Step 2: Convert to fraction form
    8,729.75/12,045.84 = 5,373.11/x
  3. Step 3: Cross multiply
    8,729.75x = 12,045.84 × 5,373.11
  4. Step 4: Simplify right side
    8,729.75x = 64,723,623.36
  5. Step 5: Solve for x
    x = 64,723,623.36/8,729.75
  6. Step 6: Final answer
    x = 7,414.14

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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.