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Finding the Fourth Proportional to 17,765.04, 26,642.93 and 5,281.71

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Solution

The fourth proportional to 17,765.04, 26,642.93 and 5,281.71 is: 7,921.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,765.04 : 26,642.93 = 5,281.71 : x
  2. Step 2: Convert to fraction form
    17,765.04/26,642.93 = 5,281.71/x
  3. Step 3: Cross multiply
    17,765.04x = 26,642.93 × 5,281.71
  4. Step 4: Simplify right side
    17,765.04x = 140,720,103.49
  5. Step 5: Solve for x
    x = 140,720,103.49/17,765.04
  6. Step 6: Final answer
    x = 7,921.18

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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.