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Finding the Fourth Proportional to 7,108.76, 9,800.46 and 5,318.87

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Solution

The fourth proportional to 7,108.76, 9,800.46 and 5,318.87 is: 7,332.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,108.76 : 9,800.46 = 5,318.87 : x
  2. Step 2: Convert to fraction form
    7,108.76/9,800.46 = 5,318.87/x
  3. Step 3: Cross multiply
    7,108.76x = 9,800.46 × 5,318.87
  4. Step 4: Simplify right side
    7,108.76x = 52,127,323.68
  5. Step 5: Solve for x
    x = 52,127,323.68/7,108.76
  6. Step 6: Final answer
    x = 7,332.83

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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.