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Finding the Fourth Proportional to 8,717.48, 12,029.76 and 4,738.49

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Solution

The fourth proportional to 8,717.48, 12,029.76 and 4,738.49 is: 6,538.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.48 : 12,029.76 = 4,738.49 : x
  2. Step 2: Convert to fraction form
    8,717.48/12,029.76 = 4,738.49/x
  3. Step 3: Cross multiply
    8,717.48x = 12,029.76 × 4,738.49
  4. Step 4: Simplify right side
    8,717.48x = 57,002,837.31
  5. Step 5: Solve for x
    x = 57,002,837.31/8,717.48
  6. Step 6: Final answer
    x = 6,538.92

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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.