Home / 7,240.32-10,873.92-5,685.12

Finding the Fourth Proportional to 7,240.32, 10,873.92 and 5,685.12

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Solution

The fourth proportional to 7,240.32, 10,873.92 and 5,685.12 is: 8,538.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,240.32 : 10,873.92 = 5,685.12 : x
  2. Step 2: Convert to fraction form
    7,240.32/10,873.92 = 5,685.12/x
  3. Step 3: Cross multiply
    7,240.32x = 10,873.92 × 5,685.12
  4. Step 4: Simplify right side
    7,240.32x = 61,819,540.07
  5. Step 5: Solve for x
    x = 61,819,540.07/7,240.32
  6. Step 6: Final answer
    x = 8,538.23

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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.