Home / 13,329.76-18,395.10-7,361.32

Finding the Fourth Proportional to 13,329.76, 18,395.10 and 7,361.32

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Solution

The fourth proportional to 13,329.76, 18,395.10 and 7,361.32 is: 10,158.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,329.76 : 18,395.10 = 7,361.32 : x
  2. Step 2: Convert to fraction form
    13,329.76/18,395.10 = 7,361.32/x
  3. Step 3: Cross multiply
    13,329.76x = 18,395.10 × 7,361.32
  4. Step 4: Simplify right side
    13,329.76x = 135,412,217.53
  5. Step 5: Solve for x
    x = 135,412,217.53/13,329.76
  6. Step 6: Final answer
    x = 10,158.64

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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.