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Finding the Fourth Proportional to 6,648.12, 9,972.68 and 1,717.79

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Solution

The fourth proportional to 6,648.12, 9,972.68 and 1,717.79 is: 2,576.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,648.12 : 9,972.68 = 1,717.79 : x
  2. Step 2: Convert to fraction form
    6,648.12/9,972.68 = 1,717.79/x
  3. Step 3: Cross multiply
    6,648.12x = 9,972.68 × 1,717.79
  4. Step 4: Simplify right side
    6,648.12x = 17,130,911.52
  5. Step 5: Solve for x
    x = 17,130,911.52/6,648.12
  6. Step 6: Final answer
    x = 2,576.81

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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.