Home / 9,721.13-13,415.84-5,472.60

Finding the Fourth Proportional to 9,721.13, 13,415.84 and 5,472.60

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Solution

The fourth proportional to 9,721.13, 13,415.84 and 5,472.60 is: 7,552.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,721.13 : 13,415.84 = 5,472.60 : x
  2. Step 2: Convert to fraction form
    9,721.13/13,415.84 = 5,472.60/x
  3. Step 3: Cross multiply
    9,721.13x = 13,415.84 × 5,472.60
  4. Step 4: Simplify right side
    9,721.13x = 73,419,498.62
  5. Step 5: Solve for x
    x = 73,419,498.62/9,721.13
  6. Step 6: Final answer
    x = 7,552.57

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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.