Home / 7,160.38-10,730.85-5,318.44

Finding the Fourth Proportional to 7,160.38, 10,730.85 and 5,318.44

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Solution

The fourth proportional to 7,160.38, 10,730.85 and 5,318.44 is: 7,970.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,160.38 : 10,730.85 = 5,318.44 : x
  2. Step 2: Convert to fraction form
    7,160.38/10,730.85 = 5,318.44/x
  3. Step 3: Cross multiply
    7,160.38x = 10,730.85 × 5,318.44
  4. Step 4: Simplify right side
    7,160.38x = 57,071,381.87
  5. Step 5: Solve for x
    x = 57,071,381.87/7,160.38
  6. Step 6: Final answer
    x = 7,970.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.