Home / 15,487.33-21,371.04-8,771.66

Finding the Fourth Proportional to 15,487.33, 21,371.04 and 8,771.66

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Solution

The fourth proportional to 15,487.33, 21,371.04 and 8,771.66 is: 12,104.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,487.33 : 21,371.04 = 8,771.66 : x
  2. Step 2: Convert to fraction form
    15,487.33/21,371.04 = 8,771.66/x
  3. Step 3: Cross multiply
    15,487.33x = 21,371.04 × 8,771.66
  4. Step 4: Simplify right side
    15,487.33x = 187,459,550.15
  5. Step 5: Solve for x
    x = 187,459,550.15/15,487.33
  6. Step 6: Final answer
    x = 12,104.06

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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.