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Finding the Fourth Proportional to 9,959.18, 13,741.18 and 6,418.13

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Solution

The fourth proportional to 9,959.18, 13,741.18 and 6,418.13 is: 8,855.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,959.18 : 13,741.18 = 6,418.13 : x
  2. Step 2: Convert to fraction form
    9,959.18/13,741.18 = 6,418.13/x
  3. Step 3: Cross multiply
    9,959.18x = 13,741.18 × 6,418.13
  4. Step 4: Simplify right side
    9,959.18x = 88,192,594.84
  5. Step 5: Solve for x
    x = 88,192,594.84/9,959.18
  6. Step 6: Final answer
    x = 8,855.41

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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.