Home / 15,827.58-21,844.32-9,112.53

Finding the Fourth Proportional to 15,827.58, 21,844.32 and 9,112.53

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Solution

The fourth proportional to 15,827.58, 21,844.32 and 9,112.53 is: 12,576.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,827.58 : 21,844.32 = 9,112.53 : x
  2. Step 2: Convert to fraction form
    15,827.58/21,844.32 = 9,112.53/x
  3. Step 3: Cross multiply
    15,827.58x = 21,844.32 × 9,112.53
  4. Step 4: Simplify right side
    15,827.58x = 199,057,021.33
  5. Step 5: Solve for x
    x = 199,057,021.33/15,827.58
  6. Step 6: Final answer
    x = 12,576.59

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1.5x scale

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.