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Finding the Fourth Proportional to 12,100.20, 18,151.02 and 4,702.20

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Solution

The fourth proportional to 12,100.20, 18,151.02 and 4,702.20 is: 7,053.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,100.20 : 18,151.02 = 4,702.20 : x
  2. Step 2: Convert to fraction form
    12,100.20/18,151.02 = 4,702.20/x
  3. Step 3: Cross multiply
    12,100.20x = 18,151.02 × 4,702.20
  4. Step 4: Simplify right side
    12,100.20x = 85,349,726.24
  5. Step 5: Solve for x
    x = 85,349,726.24/12,100.20
  6. Step 6: Final answer
    x = 7,053.58

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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.