Home / 15,933.82-21,988.38-8,860.18

Finding the Fourth Proportional to 15,933.82, 21,988.38 and 8,860.18

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Solution

The fourth proportional to 15,933.82, 21,988.38 and 8,860.18 is: 12,226.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,933.82 : 21,988.38 = 8,860.18 : x
  2. Step 2: Convert to fraction form
    15,933.82/21,988.38 = 8,860.18/x
  3. Step 3: Cross multiply
    15,933.82x = 21,988.38 × 8,860.18
  4. Step 4: Simplify right side
    15,933.82x = 194,821,004.71
  5. Step 5: Solve for x
    x = 194,821,004.71/15,933.82
  6. Step 6: Final answer
    x = 12,226.89

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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.