Home / 15,767.11-21,758.21-8,693.41

Finding the Fourth Proportional to 15,767.11, 21,758.21 and 8,693.41

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Solution

The fourth proportional to 15,767.11, 21,758.21 and 8,693.41 is: 11,996.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,767.11 : 21,758.21 = 8,693.41 : x
  2. Step 2: Convert to fraction form
    15,767.11/21,758.21 = 8,693.41/x
  3. Step 3: Cross multiply
    15,767.11x = 21,758.21 × 8,693.41
  4. Step 4: Simplify right side
    15,767.11x = 189,152,996.93
  5. Step 5: Solve for x
    x = 189,152,996.93/15,767.11
  6. Step 6: Final answer
    x = 11,996.68

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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.