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Finding the Fourth Proportional to 8,697.35, 13,047.05 and 2,772.17

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Solution

The fourth proportional to 8,697.35, 13,047.05 and 2,772.17 is: 4,158.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,697.35 : 13,047.05 = 2,772.17 : x
  2. Step 2: Convert to fraction form
    8,697.35/13,047.05 = 2,772.17/x
  3. Step 3: Cross multiply
    8,697.35x = 13,047.05 × 2,772.17
  4. Step 4: Simplify right side
    8,697.35x = 36,168,659.36
  5. Step 5: Solve for x
    x = 36,168,659.36/8,697.35
  6. Step 6: Final answer
    x = 4,158.58

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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.