Home / 14,555.68-20,085.51-8,180.80

Finding the Fourth Proportional to 14,555.68, 20,085.51 and 8,180.80

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Solution

The fourth proportional to 14,555.68, 20,085.51 and 8,180.80 is: 11,288.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,555.68 : 20,085.51 = 8,180.80 : x
  2. Step 2: Convert to fraction form
    14,555.68/20,085.51 = 8,180.80/x
  3. Step 3: Cross multiply
    14,555.68x = 20,085.51 × 8,180.80
  4. Step 4: Simplify right side
    14,555.68x = 164,315,540.21
  5. Step 5: Solve for x
    x = 164,315,540.21/14,555.68
  6. Step 6: Final answer
    x = 11,288.76

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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.