Home / 15,544.09-21,451.40-8,830

Finding the Fourth Proportional to 15,544.09, 21,451.40 and 8,830

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Solution

The fourth proportional to 15,544.09, 21,451.40 and 8,830 is: 12,185.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,544.09 : 21,451.40 = 8,830 : x
  2. Step 2: Convert to fraction form
    15,544.09/21,451.40 = 8,830/x
  3. Step 3: Cross multiply
    15,544.09x = 21,451.40 × 8,830
  4. Step 4: Simplify right side
    15,544.09x = 189,415,862
  5. Step 5: Solve for x
    x = 189,415,862/15,544.09
  6. Step 6: Final answer
    x = 12,185.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.