Home / 13,320.32-18,381.96-7,352.36

Finding the Fourth Proportional to 13,320.32, 18,381.96 and 7,352.36

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Solution

The fourth proportional to 13,320.32, 18,381.96 and 7,352.36 is: 10,146.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320.32 : 18,381.96 = 7,352.36 : x
  2. Step 2: Convert to fraction form
    13,320.32/18,381.96 = 7,352.36/x
  3. Step 3: Cross multiply
    13,320.32x = 18,381.96 × 7,352.36
  4. Step 4: Simplify right side
    13,320.32x = 135,150,787.43
  5. Step 5: Solve for x
    x = 135,150,787.43/13,320.32
  6. Step 6: Final answer
    x = 10,146.21

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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.