Home / 12,760.14-19,140.27-3,875.58

Finding the Fourth Proportional to 12,760.14, 19,140.27 and 3,875.58

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Solution

The fourth proportional to 12,760.14, 19,140.27 and 3,875.58 is: 5,813.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,760.14 : 19,140.27 = 3,875.58 : x
  2. Step 2: Convert to fraction form
    12,760.14/19,140.27 = 3,875.58/x
  3. Step 3: Cross multiply
    12,760.14x = 19,140.27 × 3,875.58
  4. Step 4: Simplify right side
    12,760.14x = 74,179,647.61
  5. Step 5: Solve for x
    x = 74,179,647.61/12,760.14
  6. Step 6: Final answer
    x = 5,813.39

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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.