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Finding the Fourth Proportional to 8,804.64, 13,209.90 and 2,881.80

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Solution

The fourth proportional to 8,804.64, 13,209.90 and 2,881.80 is: 4,323.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,804.64 : 13,209.90 = 2,881.80 : x
  2. Step 2: Convert to fraction form
    8,804.64/13,209.90 = 2,881.80/x
  3. Step 3: Cross multiply
    8,804.64x = 13,209.90 × 2,881.80
  4. Step 4: Simplify right side
    8,804.64x = 38,068,289.82
  5. Step 5: Solve for x
    x = 38,068,289.82/8,804.64
  6. Step 6: Final answer
    x = 4,323.66

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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.