Home / 13,442.38-18,550.70-7,392.86

Finding the Fourth Proportional to 13,442.38, 18,550.70 and 7,392.86

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Solution

The fourth proportional to 13,442.38, 18,550.70 and 7,392.86 is: 10,202.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442.38 : 18,550.70 = 7,392.86 : x
  2. Step 2: Convert to fraction form
    13,442.38/18,550.70 = 7,392.86/x
  3. Step 3: Cross multiply
    13,442.38x = 18,550.70 × 7,392.86
  4. Step 4: Simplify right side
    13,442.38x = 137,142,728.00
  5. Step 5: Solve for x
    x = 137,142,728.00/13,442.38
  6. Step 6: Final answer
    x = 10,202.27

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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.