Home / 11,218.19-15,479.15-6,742.94

Finding the Fourth Proportional to 11,218.19, 15,479.15 and 6,742.94

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Solution

The fourth proportional to 11,218.19, 15,479.15 and 6,742.94 is: 9,304.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,218.19 : 15,479.15 = 6,742.94 : x
  2. Step 2: Convert to fraction form
    11,218.19/15,479.15 = 6,742.94/x
  3. Step 3: Cross multiply
    11,218.19x = 15,479.15 × 6,742.94
  4. Step 4: Simplify right side
    11,218.19x = 104,374,868.59
  5. Step 5: Solve for x
    x = 104,374,868.59/11,218.19
  6. Step 6: Final answer
    x = 9,304.08

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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.