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Finding the Fourth Proportional to 7,065.54, 10,614.74 and 5,130.09

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Solution

The fourth proportional to 7,065.54, 10,614.74 and 5,130.09 is: 7,707.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,065.54 : 10,614.74 = 5,130.09 : x
  2. Step 2: Convert to fraction form
    7,065.54/10,614.74 = 5,130.09/x
  3. Step 3: Cross multiply
    7,065.54x = 10,614.74 × 5,130.09
  4. Step 4: Simplify right side
    7,065.54x = 54,454,545.88
  5. Step 5: Solve for x
    x = 54,454,545.88/7,065.54
  6. Step 6: Final answer
    x = 7,707.06

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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.