Home / 7,489.48-10,316.82-5,812.78

Finding the Fourth Proportional to 7,489.48, 10,316.82 and 5,812.78

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Solution

The fourth proportional to 7,489.48, 10,316.82 and 5,812.78 is: 8,007.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,489.48 : 10,316.82 = 5,812.78 : x
  2. Step 2: Convert to fraction form
    7,489.48/10,316.82 = 5,812.78/x
  3. Step 3: Cross multiply
    7,489.48x = 10,316.82 × 5,812.78
  4. Step 4: Simplify right side
    7,489.48x = 59,969,404.96
  5. Step 5: Solve for x
    x = 59,969,404.96/7,489.48
  6. Step 6: Final answer
    x = 8,007.15

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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.