Home / 15,964.62-22,011.66-9,985.90

Finding the Fourth Proportional to 15,964.62, 22,011.66 and 9,985.90

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Solution

The fourth proportional to 15,964.62, 22,011.66 and 9,985.90 is: 13,768.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,964.62 : 22,011.66 = 9,985.90 : x
  2. Step 2: Convert to fraction form
    15,964.62/22,011.66 = 9,985.90/x
  3. Step 3: Cross multiply
    15,964.62x = 22,011.66 × 9,985.90
  4. Step 4: Simplify right side
    15,964.62x = 219,806,235.59
  5. Step 5: Solve for x
    x = 219,806,235.59/15,964.62
  6. Step 6: Final answer
    x = 13,768.33

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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.