Home / 10,430.24-15,643.50-5,163.56

Finding the Fourth Proportional to 10,430.24, 15,643.50 and 5,163.56

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Solution

The fourth proportional to 10,430.24, 15,643.50 and 5,163.56 is: 7,744.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,430.24 : 15,643.50 = 5,163.56 : x
  2. Step 2: Convert to fraction form
    10,430.24/15,643.50 = 5,163.56/x
  3. Step 3: Cross multiply
    10,430.24x = 15,643.50 × 5,163.56
  4. Step 4: Simplify right side
    10,430.24x = 80,776,150.86
  5. Step 5: Solve for x
    x = 80,776,150.86/10,430.24
  6. Step 6: Final answer
    x = 7,744.42

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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.