Home / 15,767.67-21,758.34-8,694.07

Finding the Fourth Proportional to 15,767.67, 21,758.34 and 8,694.07

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Solution

The fourth proportional to 15,767.67, 21,758.34 and 8,694.07 is: 11,997.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,767.67 : 21,758.34 = 8,694.07 : x
  2. Step 2: Convert to fraction form
    15,767.67/21,758.34 = 8,694.07/x
  3. Step 3: Cross multiply
    15,767.67x = 21,758.34 × 8,694.07
  4. Step 4: Simplify right side
    15,767.67x = 189,168,531.04
  5. Step 5: Solve for x
    x = 189,168,531.04/15,767.67
  6. Step 6: Final answer
    x = 11,997.24

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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.