Home / 10,211.31-15,323.49-6,516.18

Finding the Fourth Proportional to 10,211.31, 15,323.49 and 6,516.18

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Solution

The fourth proportional to 10,211.31, 15,323.49 and 6,516.18 is: 9,778.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,211.31 : 15,323.49 = 6,516.18 : x
  2. Step 2: Convert to fraction form
    10,211.31/15,323.49 = 6,516.18/x
  3. Step 3: Cross multiply
    10,211.31x = 15,323.49 × 6,516.18
  4. Step 4: Simplify right side
    10,211.31x = 99,850,619.07
  5. Step 5: Solve for x
    x = 99,850,619.07/10,211.31
  6. Step 6: Final answer
    x = 9,778.43

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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.