Home / 7,323.12-10,102.28-5,198.64

Finding the Fourth Proportional to 7,323.12, 10,102.28 and 5,198.64

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Solution

The fourth proportional to 7,323.12, 10,102.28 and 5,198.64 is: 7,171.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,323.12 : 10,102.28 = 5,198.64 : x
  2. Step 2: Convert to fraction form
    7,323.12/10,102.28 = 5,198.64/x
  3. Step 3: Cross multiply
    7,323.12x = 10,102.28 × 5,198.64
  4. Step 4: Simplify right side
    7,323.12x = 52,518,116.90
  5. Step 5: Solve for x
    x = 52,518,116.90/7,323.12
  6. Step 6: Final answer
    x = 7,171.55

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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.