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Finding the Fourth Proportional to 8,574.40, 12,853.40 and 2,727.21

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Solution

The fourth proportional to 8,574.40, 12,853.40 and 2,727.21 is: 4,088.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,574.40 : 12,853.40 = 2,727.21 : x
  2. Step 2: Convert to fraction form
    8,574.40/12,853.40 = 2,727.21/x
  3. Step 3: Cross multiply
    8,574.40x = 12,853.40 × 2,727.21
  4. Step 4: Simplify right side
    8,574.40x = 35,053,907.38
  5. Step 5: Solve for x
    x = 35,053,907.38/8,574.40
  6. Step 6: Final answer
    x = 4,088.21

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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.