Home / 15,817.10-21,828.45-8,744.18

Finding the Fourth Proportional to 15,817.10, 21,828.45 and 8,744.18

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Solution

The fourth proportional to 15,817.10, 21,828.45 and 8,744.18 is: 12,067.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,817.10 : 21,828.45 = 8,744.18 : x
  2. Step 2: Convert to fraction form
    15,817.10/21,828.45 = 8,744.18/x
  3. Step 3: Cross multiply
    15,817.10x = 21,828.45 × 8,744.18
  4. Step 4: Simplify right side
    15,817.10x = 190,871,895.92
  5. Step 5: Solve for x
    x = 190,871,895.92/15,817.10
  6. Step 6: Final answer
    x = 12,067.44

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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.