Home / 9,872.06-13,618.87-5,677.88

Finding the Fourth Proportional to 9,872.06, 13,618.87 and 5,677.88

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Solution

The fourth proportional to 9,872.06, 13,618.87 and 5,677.88 is: 7,832.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,872.06 : 13,618.87 = 5,677.88 : x
  2. Step 2: Convert to fraction form
    9,872.06/13,618.87 = 5,677.88/x
  3. Step 3: Cross multiply
    9,872.06x = 13,618.87 × 5,677.88
  4. Step 4: Simplify right side
    9,872.06x = 77,326,227.31
  5. Step 5: Solve for x
    x = 77,326,227.31/9,872.06
  6. Step 6: Final answer
    x = 7,832.84

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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.