Home / 10,906.20-15,050.34-6,430.14

Finding the Fourth Proportional to 10,906.20, 15,050.34 and 6,430.14

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Solution

The fourth proportional to 10,906.20, 15,050.34 and 6,430.14 is: 8,873.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,906.20 : 15,050.34 = 6,430.14 : x
  2. Step 2: Convert to fraction form
    10,906.20/15,050.34 = 6,430.14/x
  3. Step 3: Cross multiply
    10,906.20x = 15,050.34 × 6,430.14
  4. Step 4: Simplify right side
    10,906.20x = 96,775,793.25
  5. Step 5: Solve for x
    x = 96,775,793.25/10,906.20
  6. Step 6: Final answer
    x = 8,873.47

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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.