Home / 10,989.30-15,166.32-6,274.28

Finding the Fourth Proportional to 10,989.30, 15,166.32 and 6,274.28

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Solution

The fourth proportional to 10,989.30, 15,166.32 and 6,274.28 is: 8,659.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,989.30 : 15,166.32 = 6,274.28 : x
  2. Step 2: Convert to fraction form
    10,989.30/15,166.32 = 6,274.28/x
  3. Step 3: Cross multiply
    10,989.30x = 15,166.32 × 6,274.28
  4. Step 4: Simplify right side
    10,989.30x = 95,157,738.25
  5. Step 5: Solve for x
    x = 95,157,738.25/10,989.30
  6. Step 6: Final answer
    x = 8,659.13

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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.