Home / 15,144.89-22,709.70-8,821.81

Finding the Fourth Proportional to 15,144.89, 22,709.70 and 8,821.81

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Solution

The fourth proportional to 15,144.89, 22,709.70 and 8,821.81 is: 13,228.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,144.89 : 22,709.70 = 8,821.81 : x
  2. Step 2: Convert to fraction form
    15,144.89/22,709.70 = 8,821.81/x
  3. Step 3: Cross multiply
    15,144.89x = 22,709.70 × 8,821.81
  4. Step 4: Simplify right side
    15,144.89x = 200,340,545.01
  5. Step 5: Solve for x
    x = 200,340,545.01/15,144.89
  6. Step 6: Final answer
    x = 13,228.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.