Home / 12,116.89-18,184.45-5,547.69

Finding the Fourth Proportional to 12,116.89, 18,184.45 and 5,547.69

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Solution

The fourth proportional to 12,116.89, 18,184.45 and 5,547.69 is: 8,325.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,116.89 : 18,184.45 = 5,547.69 : x
  2. Step 2: Convert to fraction form
    12,116.89/18,184.45 = 5,547.69/x
  3. Step 3: Cross multiply
    12,116.89x = 18,184.45 × 5,547.69
  4. Step 4: Simplify right side
    12,116.89x = 100,881,687.95
  5. Step 5: Solve for x
    x = 100,881,687.95/12,116.89
  6. Step 6: Final answer
    x = 8,325.71

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1.5x scale

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.