Home / 12,649.34-18,981.30-5,254.04

Finding the Fourth Proportional to 12,649.34, 18,981.30 and 5,254.04

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Solution

The fourth proportional to 12,649.34, 18,981.30 and 5,254.04 is: 7,884.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,649.34 : 18,981.30 = 5,254.04 : x
  2. Step 2: Convert to fraction form
    12,649.34/18,981.30 = 5,254.04/x
  3. Step 3: Cross multiply
    12,649.34x = 18,981.30 × 5,254.04
  4. Step 4: Simplify right side
    12,649.34x = 99,728,509.45
  5. Step 5: Solve for x
    x = 99,728,509.45/12,649.34
  6. Step 6: Final answer
    x = 7,884.09

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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.