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Finding the Fourth Proportional to 9,065.54, 12,510.39 and 5,086.65

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Solution

The fourth proportional to 9,065.54, 12,510.39 and 5,086.65 is: 7,019.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,065.54 : 12,510.39 = 5,086.65 : x
  2. Step 2: Convert to fraction form
    9,065.54/12,510.39 = 5,086.65/x
  3. Step 3: Cross multiply
    9,065.54x = 12,510.39 × 5,086.65
  4. Step 4: Simplify right side
    9,065.54x = 63,635,975.29
  5. Step 5: Solve for x
    x = 63,635,975.29/9,065.54
  6. Step 6: Final answer
    x = 7,019.55

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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.