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Finding the Fourth Proportional to 7,312.96, 10,962.96 and 5,589.28

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Solution

The fourth proportional to 7,312.96, 10,962.96 and 5,589.28 is: 8,378.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,312.96 : 10,962.96 = 5,589.28 : x
  2. Step 2: Convert to fraction form
    7,312.96/10,962.96 = 5,589.28/x
  3. Step 3: Cross multiply
    7,312.96x = 10,962.96 × 5,589.28
  4. Step 4: Simplify right side
    7,312.96x = 61,275,053.07
  5. Step 5: Solve for x
    x = 61,275,053.07/7,312.96
  6. Step 6: Final answer
    x = 8,378.97

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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.