Home / 10,989.94-15,163.80-6,274.10

Finding the Fourth Proportional to 10,989.94, 15,163.80 and 6,274.10

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Solution

The fourth proportional to 10,989.94, 15,163.80 and 6,274.10 is: 8,656.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,989.94 : 15,163.80 = 6,274.10 : x
  2. Step 2: Convert to fraction form
    10,989.94/15,163.80 = 6,274.10/x
  3. Step 3: Cross multiply
    10,989.94x = 15,163.80 × 6,274.10
  4. Step 4: Simplify right side
    10,989.94x = 95,139,197.58
  5. Step 5: Solve for x
    x = 95,139,197.58/10,989.94
  6. Step 6: Final answer
    x = 8,656.94

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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.