Home / 7,215.74-10,812.62-5,358.14

Finding the Fourth Proportional to 7,215.74, 10,812.62 and 5,358.14

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Solution

The fourth proportional to 7,215.74, 10,812.62 and 5,358.14 is: 8,029.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.74 : 10,812.62 = 5,358.14 : x
  2. Step 2: Convert to fraction form
    7,215.74/10,812.62 = 5,358.14/x
  3. Step 3: Cross multiply
    7,215.74x = 10,812.62 × 5,358.14
  4. Step 4: Simplify right side
    7,215.74x = 57,935,531.73
  5. Step 5: Solve for x
    x = 57,935,531.73/7,215.74
  6. Step 6: Final answer
    x = 8,029.05

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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.