Home / 10,183.35-15,278.36-6,430.80

Finding the Fourth Proportional to 10,183.35, 15,278.36 and 6,430.80

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Solution

The fourth proportional to 10,183.35, 15,278.36 and 6,430.80 is: 9,648.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,183.35 : 15,278.36 = 6,430.80 : x
  2. Step 2: Convert to fraction form
    10,183.35/15,278.36 = 6,430.80/x
  3. Step 3: Cross multiply
    10,183.35x = 15,278.36 × 6,430.80
  4. Step 4: Simplify right side
    10,183.35x = 98,252,077.49
  5. Step 5: Solve for x
    x = 98,252,077.49/10,183.35
  6. Step 6: Final answer
    x = 9,648.31

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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.