Home / 15,948.80-22,012.08-9,982.88

Finding the Fourth Proportional to 15,948.80, 22,012.08 and 9,982.88

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Solution

The fourth proportional to 15,948.80, 22,012.08 and 9,982.88 is: 13,778.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,948.80 : 22,012.08 = 9,982.88 : x
  2. Step 2: Convert to fraction form
    15,948.80/22,012.08 = 9,982.88/x
  3. Step 3: Cross multiply
    15,948.80x = 22,012.08 × 9,982.88
  4. Step 4: Simplify right side
    15,948.80x = 219,743,953.19
  5. Step 5: Solve for x
    x = 219,743,953.19/15,948.80
  6. Step 6: Final answer
    x = 13,778.09

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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.