Home / 13,406.48-20,112.60-4,522.70

Finding the Fourth Proportional to 13,406.48, 20,112.60 and 4,522.70

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Solution

The fourth proportional to 13,406.48, 20,112.60 and 4,522.70 is: 6,785.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,406.48 : 20,112.60 = 4,522.70 : x
  2. Step 2: Convert to fraction form
    13,406.48/20,112.60 = 4,522.70/x
  3. Step 3: Cross multiply
    13,406.48x = 20,112.60 × 4,522.70
  4. Step 4: Simplify right side
    13,406.48x = 90,963,155.46
  5. Step 5: Solve for x
    x = 90,963,155.46/13,406.48
  6. Step 6: Final answer
    x = 6,785.02

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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.