Home / 10,951.96-15,108.90-6,703.21

Finding the Fourth Proportional to 10,951.96, 15,108.90 and 6,703.21

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Solution

The fourth proportional to 10,951.96, 15,108.90 and 6,703.21 is: 9,247.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,951.96 : 15,108.90 = 6,703.21 : x
  2. Step 2: Convert to fraction form
    10,951.96/15,108.90 = 6,703.21/x
  3. Step 3: Cross multiply
    10,951.96x = 15,108.90 × 6,703.21
  4. Step 4: Simplify right side
    10,951.96x = 101,278,129.57
  5. Step 5: Solve for x
    x = 101,278,129.57/10,951.96
  6. Step 6: Final answer
    x = 9,247.49

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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.