Home / 8,472.29-12,708.80-2,628.77

Finding the Fourth Proportional to 8,472.29, 12,708.80 and 2,628.77

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Solution

The fourth proportional to 8,472.29, 12,708.80 and 2,628.77 is: 3,943.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,472.29 : 12,708.80 = 2,628.77 : x
  2. Step 2: Convert to fraction form
    8,472.29/12,708.80 = 2,628.77/x
  3. Step 3: Cross multiply
    8,472.29x = 12,708.80 × 2,628.77
  4. Step 4: Simplify right side
    8,472.29x = 33,408,512.18
  5. Step 5: Solve for x
    x = 33,408,512.18/8,472.29
  6. Step 6: Final answer
    x = 3,943.27

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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.