Home / 13,333.86-18,399.15-7,365.17

Finding the Fourth Proportional to 13,333.86, 18,399.15 and 7,365.17

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Solution

The fourth proportional to 13,333.86, 18,399.15 and 7,365.17 is: 10,163.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,333.86 : 18,399.15 = 7,365.17 : x
  2. Step 2: Convert to fraction form
    13,333.86/18,399.15 = 7,365.17/x
  3. Step 3: Cross multiply
    13,333.86x = 18,399.15 × 7,365.17
  4. Step 4: Simplify right side
    13,333.86x = 135,512,867.61
  5. Step 5: Solve for x
    x = 135,512,867.61/13,333.86
  6. Step 6: Final answer
    x = 10,163.06

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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.