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Finding the Fourth Proportional to 8,650.76, 11,938.04 and 4,671.87

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Solution

The fourth proportional to 8,650.76, 11,938.04 and 4,671.87 is: 6,447.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,650.76 : 11,938.04 = 4,671.87 : x
  2. Step 2: Convert to fraction form
    8,650.76/11,938.04 = 4,671.87/x
  3. Step 3: Cross multiply
    8,650.76x = 11,938.04 × 4,671.87
  4. Step 4: Simplify right side
    8,650.76x = 55,772,952.77
  5. Step 5: Solve for x
    x = 55,772,952.77/8,650.76
  6. Step 6: Final answer
    x = 6,447.18

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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.