Home / 9,118.16-13,679.40-3,275.36

Finding the Fourth Proportional to 9,118.16, 13,679.40 and 3,275.36

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Solution

The fourth proportional to 9,118.16, 13,679.40 and 3,275.36 is: 4,913.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,118.16 : 13,679.40 = 3,275.36 : x
  2. Step 2: Convert to fraction form
    9,118.16/13,679.40 = 3,275.36/x
  3. Step 3: Cross multiply
    9,118.16x = 13,679.40 × 3,275.36
  4. Step 4: Simplify right side
    9,118.16x = 44,804,959.58
  5. Step 5: Solve for x
    x = 44,804,959.58/9,118.16
  6. Step 6: Final answer
    x = 4,913.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.