Home / 10,989.06-15,165.99-6,274.05

Finding the Fourth Proportional to 10,989.06, 15,165.99 and 6,274.05

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Solution

The fourth proportional to 10,989.06, 15,165.99 and 6,274.05 is: 8,658.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,989.06 : 15,165.99 = 6,274.05 : x
  2. Step 2: Convert to fraction form
    10,989.06/15,165.99 = 6,274.05/x
  3. Step 3: Cross multiply
    10,989.06x = 15,165.99 × 6,274.05
  4. Step 4: Simplify right side
    10,989.06x = 95,152,179.56
  5. Step 5: Solve for x
    x = 95,152,179.56/10,989.06
  6. Step 6: Final answer
    x = 8,658.81

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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.