Home / 13,330.32-18,395.01-7,361.70

Finding the Fourth Proportional to 13,330.32, 18,395.01 and 7,361.70

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Solution

The fourth proportional to 13,330.32, 18,395.01 and 7,361.70 is: 10,158.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330.32 : 18,395.01 = 7,361.70 : x
  2. Step 2: Convert to fraction form
    13,330.32/18,395.01 = 7,361.70/x
  3. Step 3: Cross multiply
    13,330.32x = 18,395.01 × 7,361.70
  4. Step 4: Simplify right side
    13,330.32x = 135,418,545.12
  5. Step 5: Solve for x
    x = 135,418,545.12/13,330.32
  6. Step 6: Final answer
    x = 10,158.69

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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.