Home / 15,941.82-22,000.23-9,971.58

Finding the Fourth Proportional to 15,941.82, 22,000.23 and 9,971.58

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Solution

The fourth proportional to 15,941.82, 22,000.23 and 9,971.58 is: 13,761.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,941.82 : 22,000.23 = 9,971.58 : x
  2. Step 2: Convert to fraction form
    15,941.82/22,000.23 = 9,971.58/x
  3. Step 3: Cross multiply
    15,941.82x = 22,000.23 × 9,971.58
  4. Step 4: Simplify right side
    15,941.82x = 219,377,053.46
  5. Step 5: Solve for x
    x = 219,377,053.46/15,941.82
  6. Step 6: Final answer
    x = 13,761.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.