Home / 18,777.44-28,169.21-8,911.35

Finding the Fourth Proportional to 18,777.44, 28,169.21 and 8,911.35

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Solution

The fourth proportional to 18,777.44, 28,169.21 and 8,911.35 is: 13,368.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,777.44 : 28,169.21 = 8,911.35 : x
  2. Step 2: Convert to fraction form
    18,777.44/28,169.21 = 8,911.35/x
  3. Step 3: Cross multiply
    18,777.44x = 28,169.21 × 8,911.35
  4. Step 4: Simplify right side
    18,777.44x = 251,025,711.81
  5. Step 5: Solve for x
    x = 251,025,711.81/18,777.44
  6. Step 6: Final answer
    x = 13,368.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.