Home / 15,824.67-21,838.32-9,112.47

Finding the Fourth Proportional to 15,824.67, 21,838.32 and 9,112.47

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Solution

The fourth proportional to 15,824.67, 21,838.32 and 9,112.47 is: 12,575.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,824.67 : 21,838.32 = 9,112.47 : x
  2. Step 2: Convert to fraction form
    15,824.67/21,838.32 = 9,112.47/x
  3. Step 3: Cross multiply
    15,824.67x = 21,838.32 × 9,112.47
  4. Step 4: Simplify right side
    15,824.67x = 199,001,035.85
  5. Step 5: Solve for x
    x = 199,001,035.85/15,824.67
  6. Step 6: Final answer
    x = 12,575.37

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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.