Home / 14,753.87-20,360.43-8,785.79

Finding the Fourth Proportional to 14,753.87, 20,360.43 and 8,785.79

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Solution

The fourth proportional to 14,753.87, 20,360.43 and 8,785.79 is: 12,124.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,753.87 : 20,360.43 = 8,785.79 : x
  2. Step 2: Convert to fraction form
    14,753.87/20,360.43 = 8,785.79/x
  3. Step 3: Cross multiply
    14,753.87x = 20,360.43 × 8,785.79
  4. Step 4: Simplify right side
    14,753.87x = 178,882,513.19
  5. Step 5: Solve for x
    x = 178,882,513.19/14,753.87
  6. Step 6: Final answer
    x = 12,124.44

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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.