Home / 8,717.72-12,033.54-5,180.92

Finding the Fourth Proportional to 8,717.72, 12,033.54 and 5,180.92

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Solution

The fourth proportional to 8,717.72, 12,033.54 and 5,180.92 is: 7,151.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.72 : 12,033.54 = 5,180.92 : x
  2. Step 2: Convert to fraction form
    8,717.72/12,033.54 = 5,180.92/x
  3. Step 3: Cross multiply
    8,717.72x = 12,033.54 × 5,180.92
  4. Step 4: Simplify right side
    8,717.72x = 62,344,808.06
  5. Step 5: Solve for x
    x = 62,344,808.06/8,717.72
  6. Step 6: Final answer
    x = 7,151.50

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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.