Home / 12,085.13-18,122.40-4,964.49

Finding the Fourth Proportional to 12,085.13, 18,122.40 and 4,964.49

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Solution

The fourth proportional to 12,085.13, 18,122.40 and 4,964.49 is: 7,444.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,085.13 : 18,122.40 = 4,964.49 : x
  2. Step 2: Convert to fraction form
    12,085.13/18,122.40 = 4,964.49/x
  3. Step 3: Cross multiply
    12,085.13x = 18,122.40 × 4,964.49
  4. Step 4: Simplify right side
    12,085.13x = 89,968,473.58
  5. Step 5: Solve for x
    x = 89,968,473.58/12,085.13
  6. Step 6: Final answer
    x = 7,444.56

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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.