Home / 10,989.67-15,166.83-6,274.66

Finding the Fourth Proportional to 10,989.67, 15,166.83 and 6,274.66

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Solution

The fourth proportional to 10,989.67, 15,166.83 and 6,274.66 is: 8,659.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,989.67 : 15,166.83 = 6,274.66 : x
  2. Step 2: Convert to fraction form
    10,989.67/15,166.83 = 6,274.66/x
  3. Step 3: Cross multiply
    10,989.67x = 15,166.83 × 6,274.66
  4. Step 4: Simplify right side
    10,989.67x = 95,166,701.53
  5. Step 5: Solve for x
    x = 95,166,701.53/10,989.67
  6. Step 6: Final answer
    x = 8,659.65

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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.