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Finding the Fourth Proportional to 18,603.66, 27,909.60 and 6,127.56

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Solution

The fourth proportional to 18,603.66, 27,909.60 and 6,127.56 is: 9,192.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,603.66 : 27,909.60 = 6,127.56 : x
  2. Step 2: Convert to fraction form
    18,603.66/27,909.60 = 6,127.56/x
  3. Step 3: Cross multiply
    18,603.66x = 27,909.60 × 6,127.56
  4. Step 4: Simplify right side
    18,603.66x = 171,017,748.58
  5. Step 5: Solve for x
    x = 171,017,748.58/18,603.66
  6. Step 6: Final answer
    x = 9,192.69

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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.