Home / 12,772.46-19,139.18-5,372.87

Finding the Fourth Proportional to 12,772.46, 19,139.18 and 5,372.87

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Solution

The fourth proportional to 12,772.46, 19,139.18 and 5,372.87 is: 8,051.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,772.46 : 19,139.18 = 5,372.87 : x
  2. Step 2: Convert to fraction form
    12,772.46/19,139.18 = 5,372.87/x
  3. Step 3: Cross multiply
    12,772.46x = 19,139.18 × 5,372.87
  4. Step 4: Simplify right side
    12,772.46x = 102,832,203.49
  5. Step 5: Solve for x
    x = 102,832,203.49/12,772.46
  6. Step 6: Final answer
    x = 8,051.09

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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.