Home / 12,715.22-19,071.88-6,471.34

Finding the Fourth Proportional to 12,715.22, 19,071.88 and 6,471.34

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Solution

The fourth proportional to 12,715.22, 19,071.88 and 6,471.34 is: 9,706.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,715.22 : 19,071.88 = 6,471.34 : x
  2. Step 2: Convert to fraction form
    12,715.22/19,071.88 = 6,471.34/x
  3. Step 3: Cross multiply
    12,715.22x = 19,071.88 × 6,471.34
  4. Step 4: Simplify right side
    12,715.22x = 123,420,619.92
  5. Step 5: Solve for x
    x = 123,420,619.92/12,715.22
  6. Step 6: Final answer
    x = 9,706.53

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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.