Home / 18,250.98-27,378.21-5,103.36

Finding the Fourth Proportional to 18,250.98, 27,378.21 and 5,103.36

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Solution

The fourth proportional to 18,250.98, 27,378.21 and 5,103.36 is: 7,655.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,250.98 : 27,378.21 = 5,103.36 : x
  2. Step 2: Convert to fraction form
    18,250.98/27,378.21 = 5,103.36/x
  3. Step 3: Cross multiply
    18,250.98x = 27,378.21 × 5,103.36
  4. Step 4: Simplify right side
    18,250.98x = 139,720,737.04
  5. Step 5: Solve for x
    x = 139,720,737.04/18,250.98
  6. Step 6: Final answer
    x = 7,655.52

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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.