Home / 10,987.99-15,163.48-6,208.02

Finding the Fourth Proportional to 10,987.99, 15,163.48 and 6,208.02

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Solution

The fourth proportional to 10,987.99, 15,163.48 and 6,208.02 is: 8,567.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,987.99 : 15,163.48 = 6,208.02 : x
  2. Step 2: Convert to fraction form
    10,987.99/15,163.48 = 6,208.02/x
  3. Step 3: Cross multiply
    10,987.99x = 15,163.48 × 6,208.02
  4. Step 4: Simplify right side
    10,987.99x = 94,135,270.00
  5. Step 5: Solve for x
    x = 94,135,270.00/10,987.99
  6. Step 6: Final answer
    x = 8,567.11

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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.