Home / 7,884.45-10,881.32-5,891.55

Finding the Fourth Proportional to 7,884.45, 10,881.32 and 5,891.55

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Solution

The fourth proportional to 7,884.45, 10,881.32 and 5,891.55 is: 8,130.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,884.45 : 10,881.32 = 5,891.55 : x
  2. Step 2: Convert to fraction form
    7,884.45/10,881.32 = 5,891.55/x
  3. Step 3: Cross multiply
    7,884.45x = 10,881.32 × 5,891.55
  4. Step 4: Simplify right side
    7,884.45x = 64,107,811.39
  5. Step 5: Solve for x
    x = 64,107,811.39/7,884.45
  6. Step 6: Final answer
    x = 8,130.92

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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.