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Finding the Fourth Proportional to 6,886.75, 9,503.16 and 3,903.04

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Solution

The fourth proportional to 6,886.75, 9,503.16 and 3,903.04 is: 5,385.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,886.75 : 9,503.16 = 3,903.04 : x
  2. Step 2: Convert to fraction form
    6,886.75/9,503.16 = 3,903.04/x
  3. Step 3: Cross multiply
    6,886.75x = 9,503.16 × 3,903.04
  4. Step 4: Simplify right side
    6,886.75x = 37,091,213.61
  5. Step 5: Solve for x
    x = 37,091,213.61/6,886.75
  6. Step 6: Final answer
    x = 5,385.88

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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.