Home / 8,717.47-12,029.62-4,738.56

Finding the Fourth Proportional to 8,717.47, 12,029.62 and 4,738.56

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Solution

The fourth proportional to 8,717.47, 12,029.62 and 4,738.56 is: 6,538.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.47 : 12,029.62 = 4,738.56 : x
  2. Step 2: Convert to fraction form
    8,717.47/12,029.62 = 4,738.56/x
  3. Step 3: Cross multiply
    8,717.47x = 12,029.62 × 4,738.56
  4. Step 4: Simplify right side
    8,717.47x = 57,003,076.15
  5. Step 5: Solve for x
    x = 57,003,076.15/8,717.47
  6. Step 6: Final answer
    x = 6,538.95

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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.