Home / 8,104.64-12,152.09-3,168.40

Finding the Fourth Proportional to 8,104.64, 12,152.09 and 3,168.40

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Solution

The fourth proportional to 8,104.64, 12,152.09 and 3,168.40 is: 4,750.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,104.64 : 12,152.09 = 3,168.40 : x
  2. Step 2: Convert to fraction form
    8,104.64/12,152.09 = 3,168.40/x
  3. Step 3: Cross multiply
    8,104.64x = 12,152.09 × 3,168.40
  4. Step 4: Simplify right side
    8,104.64x = 38,502,681.96
  5. Step 5: Solve for x
    x = 38,502,681.96/8,104.64
  6. Step 6: Final answer
    x = 4,750.70

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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.