Home / 9,621.99-13,278.09-5,372.94

Finding the Fourth Proportional to 9,621.99, 13,278.09 and 5,372.94

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Solution

The fourth proportional to 9,621.99, 13,278.09 and 5,372.94 is: 7,414.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,621.99 : 13,278.09 = 5,372.94 : x
  2. Step 2: Convert to fraction form
    9,621.99/13,278.09 = 5,372.94/x
  3. Step 3: Cross multiply
    9,621.99x = 13,278.09 × 5,372.94
  4. Step 4: Simplify right side
    9,621.99x = 71,342,337.79
  5. Step 5: Solve for x
    x = 71,342,337.79/9,621.99
  6. Step 6: Final answer
    x = 7,414.51

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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.