Home / 10,987.36-15,163.49-6,208.19

Finding the Fourth Proportional to 10,987.36, 15,163.49 and 6,208.19

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Solution

The fourth proportional to 10,987.36, 15,163.49 and 6,208.19 is: 8,567.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,987.36 : 15,163.49 = 6,208.19 : x
  2. Step 2: Convert to fraction form
    10,987.36/15,163.49 = 6,208.19/x
  3. Step 3: Cross multiply
    10,987.36x = 15,163.49 × 6,208.19
  4. Step 4: Simplify right side
    10,987.36x = 94,137,826.98
  5. Step 5: Solve for x
    x = 94,137,826.98/10,987.36
  6. Step 6: Final answer
    x = 8,567.83

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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.