Home / 19,318.88-28,985.51-6,172.29

Finding the Fourth Proportional to 19,318.88, 28,985.51 and 6,172.29

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Solution

The fourth proportional to 19,318.88, 28,985.51 and 6,172.29 is: 9,260.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,318.88 : 28,985.51 = 6,172.29 : x
  2. Step 2: Convert to fraction form
    19,318.88/28,985.51 = 6,172.29/x
  3. Step 3: Cross multiply
    19,318.88x = 28,985.51 × 6,172.29
  4. Step 4: Simplify right side
    19,318.88x = 178,906,988.95
  5. Step 5: Solve for x
    x = 178,906,988.95/19,318.88
  6. Step 6: Final answer
    x = 9,260.73

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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.