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Finding the Fourth Proportional to 8,013.04, 12,019.80 and 2,169.64

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Solution

The fourth proportional to 8,013.04, 12,019.80 and 2,169.64 is: 3,254.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,013.04 : 12,019.80 = 2,169.64 : x
  2. Step 2: Convert to fraction form
    8,013.04/12,019.80 = 2,169.64/x
  3. Step 3: Cross multiply
    8,013.04x = 12,019.80 × 2,169.64
  4. Step 4: Simplify right side
    8,013.04x = 26,078,638.87
  5. Step 5: Solve for x
    x = 26,078,638.87/8,013.04
  6. Step 6: Final answer
    x = 3,254.52

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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.