Home / 15,076.77-20,805.58-8,362.55

Finding the Fourth Proportional to 15,076.77, 20,805.58 and 8,362.55

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Solution

The fourth proportional to 15,076.77, 20,805.58 and 8,362.55 is: 11,540.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,076.77 : 20,805.58 = 8,362.55 : x
  2. Step 2: Convert to fraction form
    15,076.77/20,805.58 = 8,362.55/x
  3. Step 3: Cross multiply
    15,076.77x = 20,805.58 × 8,362.55
  4. Step 4: Simplify right side
    15,076.77x = 173,987,557.19
  5. Step 5: Solve for x
    x = 173,987,557.19/15,076.77
  6. Step 6: Final answer
    x = 11,540.11

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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.