Home / 8,649.02-12,972.29-4,939.22

Finding the Fourth Proportional to 8,649.02, 12,972.29 and 4,939.22

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Solution

The fourth proportional to 8,649.02, 12,972.29 and 4,939.22 is: 7,408.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,649.02 : 12,972.29 = 4,939.22 : x
  2. Step 2: Convert to fraction form
    8,649.02/12,972.29 = 4,939.22/x
  3. Step 3: Cross multiply
    8,649.02x = 12,972.29 × 4,939.22
  4. Step 4: Simplify right side
    8,649.02x = 64,072,994.21
  5. Step 5: Solve for x
    x = 64,072,994.21/8,649.02
  6. Step 6: Final answer
    x = 7,408.12

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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.