Home / 8,617.96-12,946.38-5,157.64

Finding the Fourth Proportional to 8,617.96, 12,946.38 and 5,157.64

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Solution

The fourth proportional to 8,617.96, 12,946.38 and 5,157.64 is: 7,748.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,617.96 : 12,946.38 = 5,157.64 : x
  2. Step 2: Convert to fraction form
    8,617.96/12,946.38 = 5,157.64/x
  3. Step 3: Cross multiply
    8,617.96x = 12,946.38 × 5,157.64
  4. Step 4: Simplify right side
    8,617.96x = 66,772,767.34
  5. Step 5: Solve for x
    x = 66,772,767.34/8,617.96
  6. Step 6: Final answer
    x = 7,748.09

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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.