Home / 8,559.36-11,821.86-5,721.93

Finding the Fourth Proportional to 8,559.36, 11,821.86 and 5,721.93

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Solution

The fourth proportional to 8,559.36, 11,821.86 and 5,721.93 is: 7,902.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,559.36 : 11,821.86 = 5,721.93 : x
  2. Step 2: Convert to fraction form
    8,559.36/11,821.86 = 5,721.93/x
  3. Step 3: Cross multiply
    8,559.36x = 11,821.86 × 5,721.93
  4. Step 4: Simplify right side
    8,559.36x = 67,643,855.39
  5. Step 5: Solve for x
    x = 67,643,855.39/8,559.36
  6. Step 6: Final answer
    x = 7,902.91

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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.