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Finding the Fourth Proportional to 8,343.68, 12,515.51 and 5,891.51

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Solution

The fourth proportional to 8,343.68, 12,515.51 and 5,891.51 is: 8,837.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,343.68 : 12,515.51 = 5,891.51 : x
  2. Step 2: Convert to fraction form
    8,343.68/12,515.51 = 5,891.51/x
  3. Step 3: Cross multiply
    8,343.68x = 12,515.51 × 5,891.51
  4. Step 4: Simplify right side
    8,343.68x = 73,735,160.29
  5. Step 5: Solve for x
    x = 73,735,160.29/8,343.68
  6. Step 6: Final answer
    x = 8,837.25

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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.