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Finding the Fourth Proportional to 8,987.01, 13,482.27 and 2,747.31

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Solution

The fourth proportional to 8,987.01, 13,482.27 and 2,747.31 is: 4,121.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,987.01 : 13,482.27 = 2,747.31 : x
  2. Step 2: Convert to fraction form
    8,987.01/13,482.27 = 2,747.31/x
  3. Step 3: Cross multiply
    8,987.01x = 13,482.27 × 2,747.31
  4. Step 4: Simplify right side
    8,987.01x = 37,039,975.19
  5. Step 5: Solve for x
    x = 37,039,975.19/8,987.01
  6. Step 6: Final answer
    x = 4,121.50

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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.