Home / 9,551.28-13,178.09-5,721.35

Finding the Fourth Proportional to 9,551.28, 13,178.09 and 5,721.35

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Solution

The fourth proportional to 9,551.28, 13,178.09 and 5,721.35 is: 7,893.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,551.28 : 13,178.09 = 5,721.35 : x
  2. Step 2: Convert to fraction form
    9,551.28/13,178.09 = 5,721.35/x
  3. Step 3: Cross multiply
    9,551.28x = 13,178.09 × 5,721.35
  4. Step 4: Simplify right side
    9,551.28x = 75,396,370.72
  5. Step 5: Solve for x
    x = 75,396,370.72/9,551.28
  6. Step 6: Final answer
    x = 7,893.85

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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.