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Finding the Fourth Proportional to 10,797.68, 16,159.94 and 6,640.32

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Solution

The fourth proportional to 10,797.68, 16,159.94 and 6,640.32 is: 9,937.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,797.68 : 16,159.94 = 6,640.32 : x
  2. Step 2: Convert to fraction form
    10,797.68/16,159.94 = 6,640.32/x
  3. Step 3: Cross multiply
    10,797.68x = 16,159.94 × 6,640.32
  4. Step 4: Simplify right side
    10,797.68x = 107,307,172.78
  5. Step 5: Solve for x
    x = 107,307,172.78/10,797.68
  6. Step 6: Final answer
    x = 9,937.98

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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.