Home / 10,183.34-15,278.36-6,430.79

Finding the Fourth Proportional to 10,183.34, 15,278.36 and 6,430.79

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Solution

The fourth proportional to 10,183.34, 15,278.36 and 6,430.79 is: 9,648.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,183.34 : 15,278.36 = 6,430.79 : x
  2. Step 2: Convert to fraction form
    10,183.34/15,278.36 = 6,430.79/x
  3. Step 3: Cross multiply
    10,183.34x = 15,278.36 × 6,430.79
  4. Step 4: Simplify right side
    10,183.34x = 98,251,930.75
  5. Step 5: Solve for x
    x = 98,251,930.75/10,183.34
  6. Step 6: Final answer
    x = 9,648.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.