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Finding the Fourth Proportional to 8,750.80, 13,117.84 and 2,903.32

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Solution

The fourth proportional to 8,750.80, 13,117.84 and 2,903.32 is: 4,352.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,750.80 : 13,117.84 = 2,903.32 : x
  2. Step 2: Convert to fraction form
    8,750.80/13,117.84 = 2,903.32/x
  3. Step 3: Cross multiply
    8,750.80x = 13,117.84 × 2,903.32
  4. Step 4: Simplify right side
    8,750.80x = 38,085,287.23
  5. Step 5: Solve for x
    x = 38,085,287.23/8,750.80
  6. Step 6: Final answer
    x = 4,352.21

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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.