Home / 13,345.38-18,416.61-7,376.94

Finding the Fourth Proportional to 13,345.38, 18,416.61 and 7,376.94

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Solution

The fourth proportional to 13,345.38, 18,416.61 and 7,376.94 is: 10,180.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345.38 : 18,416.61 = 7,376.94 : x
  2. Step 2: Convert to fraction form
    13,345.38/18,416.61 = 7,376.94/x
  3. Step 3: Cross multiply
    13,345.38x = 18,416.61 × 7,376.94
  4. Step 4: Simplify right side
    13,345.38x = 135,858,226.97
  5. Step 5: Solve for x
    x = 135,858,226.97/13,345.38
  6. Step 6: Final answer
    x = 10,180.17

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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.