Home / 12,509.24-18,759.28-3,741.20

Finding the Fourth Proportional to 12,509.24, 18,759.28 and 3,741.20

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Solution

The fourth proportional to 12,509.24, 18,759.28 and 3,741.20 is: 5,610.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,509.24 : 18,759.28 = 3,741.20 : x
  2. Step 2: Convert to fraction form
    12,509.24/18,759.28 = 3,741.20/x
  3. Step 3: Cross multiply
    12,509.24x = 18,759.28 × 3,741.20
  4. Step 4: Simplify right side
    12,509.24x = 70,182,218.34
  5. Step 5: Solve for x
    x = 70,182,218.34/12,509.24
  6. Step 6: Final answer
    x = 5,610.43

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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.