Home / 8,801.06-12,138.27-6,278.72

Finding the Fourth Proportional to 8,801.06, 12,138.27 and 6,278.72

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Solution

The fourth proportional to 8,801.06, 12,138.27 and 6,278.72 is: 8,659.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,801.06 : 12,138.27 = 6,278.72 : x
  2. Step 2: Convert to fraction form
    8,801.06/12,138.27 = 6,278.72/x
  3. Step 3: Cross multiply
    8,801.06x = 12,138.27 × 6,278.72
  4. Step 4: Simplify right side
    8,801.06x = 76,212,798.61
  5. Step 5: Solve for x
    x = 76,212,798.61/8,801.06
  6. Step 6: Final answer
    x = 8,659.50

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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.