Home / 17,784.40-26,680.56-6,691.18

Finding the Fourth Proportional to 17,784.40, 26,680.56 and 6,691.18

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Solution

The fourth proportional to 17,784.40, 26,680.56 and 6,691.18 is: 10,038.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,784.40 : 26,680.56 = 6,691.18 : x
  2. Step 2: Convert to fraction form
    17,784.40/26,680.56 = 6,691.18/x
  3. Step 3: Cross multiply
    17,784.40x = 26,680.56 × 6,691.18
  4. Step 4: Simplify right side
    17,784.40x = 178,524,429.46
  5. Step 5: Solve for x
    x = 178,524,429.46/17,784.40
  6. Step 6: Final answer
    x = 10,038.26

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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.