Home / 14,943.36-20,621.10-8,229.57

Finding the Fourth Proportional to 14,943.36, 20,621.10 and 8,229.57

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Solution

The fourth proportional to 14,943.36, 20,621.10 and 8,229.57 is: 11,356.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,943.36 : 20,621.10 = 8,229.57 : x
  2. Step 2: Convert to fraction form
    14,943.36/20,621.10 = 8,229.57/x
  3. Step 3: Cross multiply
    14,943.36x = 20,621.10 × 8,229.57
  4. Step 4: Simplify right side
    14,943.36x = 169,702,744.78
  5. Step 5: Solve for x
    x = 169,702,744.78/14,943.36
  6. Step 6: Final answer
    x = 11,356.40

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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.