Home / 13,342.86-20,018.34-7,101.81

Finding the Fourth Proportional to 13,342.86, 20,018.34 and 7,101.81

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Solution

The fourth proportional to 13,342.86, 20,018.34 and 7,101.81 is: 10,654.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,342.86 : 20,018.34 = 7,101.81 : x
  2. Step 2: Convert to fraction form
    13,342.86/20,018.34 = 7,101.81/x
  3. Step 3: Cross multiply
    13,342.86x = 20,018.34 × 7,101.81
  4. Step 4: Simplify right side
    13,342.86x = 142,166,447.20
  5. Step 5: Solve for x
    x = 142,166,447.20/13,342.86
  6. Step 6: Final answer
    x = 10,654.87

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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.