Home / 15,913.08-21,958.74-8,839.32

Finding the Fourth Proportional to 15,913.08, 21,958.74 and 8,839.32

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Solution

The fourth proportional to 15,913.08, 21,958.74 and 8,839.32 is: 12,197.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,913.08 : 21,958.74 = 8,839.32 : x
  2. Step 2: Convert to fraction form
    15,913.08/21,958.74 = 8,839.32/x
  3. Step 3: Cross multiply
    15,913.08x = 21,958.74 × 8,839.32
  4. Step 4: Simplify right side
    15,913.08x = 194,100,329.66
  5. Step 5: Solve for x
    x = 194,100,329.66/15,913.08
  6. Step 6: Final answer
    x = 12,197.53

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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.