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Finding the Fourth Proportional to 18,304.88, 27,479.76 and 12,070.10

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Solution

The fourth proportional to 18,304.88, 27,479.76 and 12,070.10 is: 18,119.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,304.88 : 27,479.76 = 12,070.10 : x
  2. Step 2: Convert to fraction form
    18,304.88/27,479.76 = 12,070.10/x
  3. Step 3: Cross multiply
    18,304.88x = 27,479.76 × 12,070.10
  4. Step 4: Simplify right side
    18,304.88x = 331,683,390.83
  5. Step 5: Solve for x
    x = 331,683,390.83/18,304.88
  6. Step 6: Final answer
    x = 18,119.95

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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.