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Finding the Fourth Proportional to 12,070.48, 18,187.94 and 9,927.20

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Solution

The fourth proportional to 12,070.48, 18,187.94 and 9,927.20 is: 14,958.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,070.48 : 18,187.94 = 9,927.20 : x
  2. Step 2: Convert to fraction form
    12,070.48/18,187.94 = 9,927.20/x
  3. Step 3: Cross multiply
    12,070.48x = 18,187.94 × 9,927.20
  4. Step 4: Simplify right side
    12,070.48x = 180,555,317.97
  5. Step 5: Solve for x
    x = 180,555,317.97/12,070.48
  6. Step 6: Final answer
    x = 14,958.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.