Home / 10,988.25-15,163.79-6,272.43

Finding the Fourth Proportional to 10,988.25, 15,163.79 and 6,272.43

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Solution

The fourth proportional to 10,988.25, 15,163.79 and 6,272.43 is: 8,655.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,988.25 : 15,163.79 = 6,272.43 : x
  2. Step 2: Convert to fraction form
    10,988.25/15,163.79 = 6,272.43/x
  3. Step 3: Cross multiply
    10,988.25x = 15,163.79 × 6,272.43
  4. Step 4: Simplify right side
    10,988.25x = 95,113,779.95
  5. Step 5: Solve for x
    x = 95,113,779.95/10,988.25
  6. Step 6: Final answer
    x = 8,655.95

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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.