Home / 7,273.72-10,914.18-5,428.54

Finding the Fourth Proportional to 7,273.72, 10,914.18 and 5,428.54

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Solution

The fourth proportional to 7,273.72, 10,914.18 and 5,428.54 is: 8,145.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,273.72 : 10,914.18 = 5,428.54 : x
  2. Step 2: Convert to fraction form
    7,273.72/10,914.18 = 5,428.54/x
  3. Step 3: Cross multiply
    7,273.72x = 10,914.18 × 5,428.54
  4. Step 4: Simplify right side
    7,273.72x = 59,248,062.70
  5. Step 5: Solve for x
    x = 59,248,062.70/7,273.72
  6. Step 6: Final answer
    x = 8,145.50

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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.