Home / 8,656.72-12,986.81-2,734.53

Finding the Fourth Proportional to 8,656.72, 12,986.81 and 2,734.53

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Solution

The fourth proportional to 8,656.72, 12,986.81 and 2,734.53 is: 4,102.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,656.72 : 12,986.81 = 2,734.53 : x
  2. Step 2: Convert to fraction form
    8,656.72/12,986.81 = 2,734.53/x
  3. Step 3: Cross multiply
    8,656.72x = 12,986.81 × 2,734.53
  4. Step 4: Simplify right side
    8,656.72x = 35,512,784.81
  5. Step 5: Solve for x
    x = 35,512,784.81/8,656.72
  6. Step 6: Final answer
    x = 4,102.34

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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.