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Finding the Fourth Proportional to 12,304.53, 16,979.09 and 7,587.90

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Solution

The fourth proportional to 12,304.53, 16,979.09 and 7,587.90 is: 10,470.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,304.53 : 16,979.09 = 7,587.90 : x
  2. Step 2: Convert to fraction form
    12,304.53/16,979.09 = 7,587.90/x
  3. Step 3: Cross multiply
    12,304.53x = 16,979.09 × 7,587.90
  4. Step 4: Simplify right side
    12,304.53x = 128,835,599.07
  5. Step 5: Solve for x
    x = 128,835,599.07/12,304.53
  6. Step 6: Final answer
    x = 10,470.58

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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.