Home / 13,369.92-18,450.71-7,320.06

Finding the Fourth Proportional to 13,369.92, 18,450.71 and 7,320.06

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Solution

The fourth proportional to 13,369.92, 18,450.71 and 7,320.06 is: 10,101.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,369.92 : 18,450.71 = 7,320.06 : x
  2. Step 2: Convert to fraction form
    13,369.92/18,450.71 = 7,320.06/x
  3. Step 3: Cross multiply
    13,369.92x = 18,450.71 × 7,320.06
  4. Step 4: Simplify right side
    13,369.92x = 135,060,368.67
  5. Step 5: Solve for x
    x = 135,060,368.67/13,369.92
  6. Step 6: Final answer
    x = 10,101.81

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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.