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Finding the Fourth Proportional to 7,931.12, 10,943.44 and 5,099

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Solution

The fourth proportional to 7,931.12, 10,943.44 and 5,099 is: 7,035.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.12 : 10,943.44 = 5,099 : x
  2. Step 2: Convert to fraction form
    7,931.12/10,943.44 = 5,099/x
  3. Step 3: Cross multiply
    7,931.12x = 10,943.44 × 5,099
  4. Step 4: Simplify right side
    7,931.12x = 55,800,600.56
  5. Step 5: Solve for x
    x = 55,800,600.56/7,931.12
  6. Step 6: Final answer
    x = 7,035.65

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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.