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Finding the Fourth Proportional to 8,152.68, 11,250.78 and 4,615.20

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Solution

The fourth proportional to 8,152.68, 11,250.78 and 4,615.20 is: 6,369.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,152.68 : 11,250.78 = 4,615.20 : x
  2. Step 2: Convert to fraction form
    8,152.68/11,250.78 = 4,615.20/x
  3. Step 3: Cross multiply
    8,152.68x = 11,250.78 × 4,615.20
  4. Step 4: Simplify right side
    8,152.68x = 51,924,599.86
  5. Step 5: Solve for x
    x = 51,924,599.86/8,152.68
  6. Step 6: Final answer
    x = 6,369.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.