Home / 15,076.42-20,802.97-8,360.98

Finding the Fourth Proportional to 15,076.42, 20,802.97 and 8,360.98

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Solution

The fourth proportional to 15,076.42, 20,802.97 and 8,360.98 is: 11,536.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,076.42 : 20,802.97 = 8,360.98 : x
  2. Step 2: Convert to fraction form
    15,076.42/20,802.97 = 8,360.98/x
  3. Step 3: Cross multiply
    15,076.42x = 20,802.97 × 8,360.98
  4. Step 4: Simplify right side
    15,076.42x = 173,933,216.11
  5. Step 5: Solve for x
    x = 173,933,216.11/15,076.42
  6. Step 6: Final answer
    x = 11,536.77

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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.