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Finding the Fourth Proportional to 9,366.80, 12,927.04 and 5,175.88

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Solution

The fourth proportional to 9,366.80, 12,927.04 and 5,175.88 is: 7,143.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,366.80 : 12,927.04 = 5,175.88 : x
  2. Step 2: Convert to fraction form
    9,366.80/12,927.04 = 5,175.88/x
  3. Step 3: Cross multiply
    9,366.80x = 12,927.04 × 5,175.88
  4. Step 4: Simplify right side
    9,366.80x = 66,908,807.80
  5. Step 5: Solve for x
    x = 66,908,807.80/9,366.80
  6. Step 6: Final answer
    x = 7,143.19

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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.