Home / 11,118.84-15,343.66-6,641.58

Finding the Fourth Proportional to 11,118.84, 15,343.66 and 6,641.58

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Solution

The fourth proportional to 11,118.84, 15,343.66 and 6,641.58 is: 9,165.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.84 : 15,343.66 = 6,641.58 : x
  2. Step 2: Convert to fraction form
    11,118.84/15,343.66 = 6,641.58/x
  3. Step 3: Cross multiply
    11,118.84x = 15,343.66 × 6,641.58
  4. Step 4: Simplify right side
    11,118.84x = 101,906,145.38
  5. Step 5: Solve for x
    x = 101,906,145.38/11,118.84
  6. Step 6: Final answer
    x = 9,165.18

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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.