Home / 8,209.07-11,319.51-5,551.87

Finding the Fourth Proportional to 8,209.07, 11,319.51 and 5,551.87

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Solution

The fourth proportional to 8,209.07, 11,319.51 and 5,551.87 is: 7,655.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,209.07 : 11,319.51 = 5,551.87 : x
  2. Step 2: Convert to fraction form
    8,209.07/11,319.51 = 5,551.87/x
  3. Step 3: Cross multiply
    8,209.07x = 11,319.51 × 5,551.87
  4. Step 4: Simplify right side
    8,209.07x = 62,844,406.47
  5. Step 5: Solve for x
    x = 62,844,406.47/8,209.07
  6. Step 6: Final answer
    x = 7,655.48

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Double scale
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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.