Home / 7,516.45-10,342.80-7,288.18

Finding the Fourth Proportional to 7,516.45, 10,342.80 and 7,288.18

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Solution

The fourth proportional to 7,516.45, 10,342.80 and 7,288.18 is: 10,028.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,516.45 : 10,342.80 = 7,288.18 : x
  2. Step 2: Convert to fraction form
    7,516.45/10,342.80 = 7,288.18/x
  3. Step 3: Cross multiply
    7,516.45x = 10,342.80 × 7,288.18
  4. Step 4: Simplify right side
    7,516.45x = 75,380,188.10
  5. Step 5: Solve for x
    x = 75,380,188.10/7,516.45
  6. Step 6: Final answer
    x = 10,028.70

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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.