Home / 7,247.62-9,999.36-4,103.20

Finding the Fourth Proportional to 7,247.62, 9,999.36 and 4,103.20

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Solution

The fourth proportional to 7,247.62, 9,999.36 and 4,103.20 is: 5,661.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,247.62 : 9,999.36 = 4,103.20 : x
  2. Step 2: Convert to fraction form
    7,247.62/9,999.36 = 4,103.20/x
  3. Step 3: Cross multiply
    7,247.62x = 9,999.36 × 4,103.20
  4. Step 4: Simplify right side
    7,247.62x = 41,029,373.95
  5. Step 5: Solve for x
    x = 41,029,373.95/7,247.62
  6. Step 6: Final answer
    x = 5,661.08

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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.