Home / 13,908.28-20,834.63-8,358.62

Finding the Fourth Proportional to 13,908.28, 20,834.63 and 8,358.62

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Solution

The fourth proportional to 13,908.28, 20,834.63 and 8,358.62 is: 12,521.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,908.28 : 20,834.63 = 8,358.62 : x
  2. Step 2: Convert to fraction form
    13,908.28/20,834.63 = 8,358.62/x
  3. Step 3: Cross multiply
    13,908.28x = 20,834.63 × 8,358.62
  4. Step 4: Simplify right side
    13,908.28x = 174,148,755.01
  5. Step 5: Solve for x
    x = 174,148,755.01/13,908.28
  6. Step 6: Final answer
    x = 12,521.23

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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.