Home / 13,640.48-20,427.86-9,244.62

Finding the Fourth Proportional to 13,640.48, 20,427.86 and 9,244.62

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Solution

The fourth proportional to 13,640.48, 20,427.86 and 9,244.62 is: 13,844.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,640.48 : 20,427.86 = 9,244.62 : x
  2. Step 2: Convert to fraction form
    13,640.48/20,427.86 = 9,244.62/x
  3. Step 3: Cross multiply
    13,640.48x = 20,427.86 × 9,244.62
  4. Step 4: Simplify right side
    13,640.48x = 188,847,803.11
  5. Step 5: Solve for x
    x = 188,847,803.11/13,640.48
  6. Step 6: Final answer
    x = 13,844.66

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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.