Home / 10,430.55-15,642.48-3,408.96

Finding the Fourth Proportional to 10,430.55, 15,642.48 and 3,408.96

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Solution

The fourth proportional to 10,430.55, 15,642.48 and 3,408.96 is: 5,112.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,430.55 : 15,642.48 = 3,408.96 : x
  2. Step 2: Convert to fraction form
    10,430.55/15,642.48 = 3,408.96/x
  3. Step 3: Cross multiply
    10,430.55x = 15,642.48 × 3,408.96
  4. Step 4: Simplify right side
    10,430.55x = 53,324,588.62
  5. Step 5: Solve for x
    x = 53,324,588.62/10,430.55
  6. Step 6: Final answer
    x = 5,112.35

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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.