Home / 10,071.81-15,118.04-6,729.95

Finding the Fourth Proportional to 10,071.81, 15,118.04 and 6,729.95

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Solution

The fourth proportional to 10,071.81, 15,118.04 and 6,729.95 is: 10,101.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,071.81 : 15,118.04 = 6,729.95 : x
  2. Step 2: Convert to fraction form
    10,071.81/15,118.04 = 6,729.95/x
  3. Step 3: Cross multiply
    10,071.81x = 15,118.04 × 6,729.95
  4. Step 4: Simplify right side
    10,071.81x = 101,743,707.92
  5. Step 5: Solve for x
    x = 101,743,707.92/10,071.81
  6. Step 6: Final answer
    x = 10,101.83

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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.