Home / 13,330.05-18,395.38-7,361.67

Finding the Fourth Proportional to 13,330.05, 18,395.38 and 7,361.67

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Solution

The fourth proportional to 13,330.05, 18,395.38 and 7,361.67 is: 10,159.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330.05 : 18,395.38 = 7,361.67 : x
  2. Step 2: Convert to fraction form
    13,330.05/18,395.38 = 7,361.67/x
  3. Step 3: Cross multiply
    13,330.05x = 18,395.38 × 7,361.67
  4. Step 4: Simplify right side
    13,330.05x = 135,420,717.08
  5. Step 5: Solve for x
    x = 135,420,717.08/13,330.05
  6. Step 6: Final answer
    x = 10,159.06

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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.