Home / 13,385.46-20,056.29-8,104.47

Finding the Fourth Proportional to 13,385.46, 20,056.29 and 8,104.47

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Solution

The fourth proportional to 13,385.46, 20,056.29 and 8,104.47 is: 12,143.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385.46 : 20,056.29 = 8,104.47 : x
  2. Step 2: Convert to fraction form
    13,385.46/20,056.29 = 8,104.47/x
  3. Step 3: Cross multiply
    13,385.46x = 20,056.29 × 8,104.47
  4. Step 4: Simplify right side
    13,385.46x = 162,545,600.62
  5. Step 5: Solve for x
    x = 162,545,600.62/13,385.46
  6. Step 6: Final answer
    x = 12,143.45

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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.