Home / 12,350.75-18,530.06-7,655.36

Finding the Fourth Proportional to 12,350.75, 18,530.06 and 7,655.36

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Solution

The fourth proportional to 12,350.75, 18,530.06 and 7,655.36 is: 11,485.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,350.75 : 18,530.06 = 7,655.36 : x
  2. Step 2: Convert to fraction form
    12,350.75/18,530.06 = 7,655.36/x
  3. Step 3: Cross multiply
    12,350.75x = 18,530.06 × 7,655.36
  4. Step 4: Simplify right side
    12,350.75x = 141,854,149.19
  5. Step 5: Solve for x
    x = 141,854,149.19/12,350.75
  6. Step 6: Final answer
    x = 11,485.47

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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.