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Finding the Fourth Proportional to 8,649.05, 12,967.09 and 4,754.57

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Solution

The fourth proportional to 8,649.05, 12,967.09 and 4,754.57 is: 7,128.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,649.05 : 12,967.09 = 4,754.57 : x
  2. Step 2: Convert to fraction form
    8,649.05/12,967.09 = 4,754.57/x
  3. Step 3: Cross multiply
    8,649.05x = 12,967.09 × 4,754.57
  4. Step 4: Simplify right side
    8,649.05x = 61,652,860.38
  5. Step 5: Solve for x
    x = 61,652,860.38/8,649.05
  6. Step 6: Final answer
    x = 7,128.29

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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.