Home / 13,335.55-18,401.57-7,365.72

Finding the Fourth Proportional to 13,335.55, 18,401.57 and 7,365.72

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Solution

The fourth proportional to 13,335.55, 18,401.57 and 7,365.72 is: 10,163.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335.55 : 18,401.57 = 7,365.72 : x
  2. Step 2: Convert to fraction form
    13,335.55/18,401.57 = 7,365.72/x
  3. Step 3: Cross multiply
    13,335.55x = 18,401.57 × 7,365.72
  4. Step 4: Simplify right side
    13,335.55x = 135,540,812.18
  5. Step 5: Solve for x
    x = 135,540,812.18/13,335.55
  6. Step 6: Final answer
    x = 10,163.87

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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.