Home / 7,325.15-10,990.28-5,325.71

Finding the Fourth Proportional to 7,325.15, 10,990.28 and 5,325.71

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Solution

The fourth proportional to 7,325.15, 10,990.28 and 5,325.71 is: 7,990.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,325.15 : 10,990.28 = 5,325.71 : x
  2. Step 2: Convert to fraction form
    7,325.15/10,990.28 = 5,325.71/x
  3. Step 3: Cross multiply
    7,325.15x = 10,990.28 × 5,325.71
  4. Step 4: Simplify right side
    7,325.15x = 58,531,002.46
  5. Step 5: Solve for x
    x = 58,531,002.46/7,325.15
  6. Step 6: Final answer
    x = 7,990.42

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Double scale
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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.