Home / 7,149.41-10,728.19-5,585.01

Finding the Fourth Proportional to 7,149.41, 10,728.19 and 5,585.01

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Solution

The fourth proportional to 7,149.41, 10,728.19 and 5,585.01 is: 8,380.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,149.41 : 10,728.19 = 5,585.01 : x
  2. Step 2: Convert to fraction form
    7,149.41/10,728.19 = 5,585.01/x
  3. Step 3: Cross multiply
    7,149.41x = 10,728.19 × 5,585.01
  4. Step 4: Simplify right side
    7,149.41x = 59,917,048.43
  5. Step 5: Solve for x
    x = 59,917,048.43/7,149.41
  6. Step 6: Final answer
    x = 8,380.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.