Home / 19,985.98-29,982.13-7,506.95

Finding the Fourth Proportional to 19,985.98, 29,982.13 and 7,506.95

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Solution

The fourth proportional to 19,985.98, 29,982.13 and 7,506.95 is: 11,261.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,985.98 : 29,982.13 = 7,506.95 : x
  2. Step 2: Convert to fraction form
    19,985.98/29,982.13 = 7,506.95/x
  3. Step 3: Cross multiply
    19,985.98x = 29,982.13 × 7,506.95
  4. Step 4: Simplify right side
    19,985.98x = 225,074,350.80
  5. Step 5: Solve for x
    x = 225,074,350.80/19,985.98
  6. Step 6: Final answer
    x = 11,261.61

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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.