Home / 15,774.06-21,767.82-8,604.12

Finding the Fourth Proportional to 15,774.06, 21,767.82 and 8,604.12

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Solution

The fourth proportional to 15,774.06, 21,767.82 and 8,604.12 is: 11,873.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,774.06 : 21,767.82 = 8,604.12 : x
  2. Step 2: Convert to fraction form
    15,774.06/21,767.82 = 8,604.12/x
  3. Step 3: Cross multiply
    15,774.06x = 21,767.82 × 8,604.12
  4. Step 4: Simplify right side
    15,774.06x = 187,292,935.42
  5. Step 5: Solve for x
    x = 187,292,935.42/15,774.06
  6. Step 6: Final answer
    x = 11,873.48

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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.