Home / 14,912.19-20,578.68-8,539.92

Finding the Fourth Proportional to 14,912.19, 20,578.68 and 8,539.92

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Solution

The fourth proportional to 14,912.19, 20,578.68 and 8,539.92 is: 11,785.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,912.19 : 20,578.68 = 8,539.92 : x
  2. Step 2: Convert to fraction form
    14,912.19/20,578.68 = 8,539.92/x
  3. Step 3: Cross multiply
    14,912.19x = 20,578.68 × 8,539.92
  4. Step 4: Simplify right side
    14,912.19x = 175,740,280.91
  5. Step 5: Solve for x
    x = 175,740,280.91/14,912.19
  6. Step 6: Final answer
    x = 11,785.01

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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.