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Finding the Fourth Proportional to 9,884.69, 13,642.11 and 6,484.56

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Solution

The fourth proportional to 9,884.69, 13,642.11 and 6,484.56 is: 8,949.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,884.69 : 13,642.11 = 6,484.56 : x
  2. Step 2: Convert to fraction form
    9,884.69/13,642.11 = 6,484.56/x
  3. Step 3: Cross multiply
    9,884.69x = 13,642.11 × 6,484.56
  4. Step 4: Simplify right side
    9,884.69x = 88,463,080.82
  5. Step 5: Solve for x
    x = 88,463,080.82/9,884.69
  6. Step 6: Final answer
    x = 8,949.51

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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.