Home / 12,947.14-19,420.83-4,182.06

Finding the Fourth Proportional to 12,947.14, 19,420.83 and 4,182.06

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Solution

The fourth proportional to 12,947.14, 19,420.83 and 4,182.06 is: 6,273.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,947.14 : 19,420.83 = 4,182.06 : x
  2. Step 2: Convert to fraction form
    12,947.14/19,420.83 = 4,182.06/x
  3. Step 3: Cross multiply
    12,947.14x = 19,420.83 × 4,182.06
  4. Step 4: Simplify right side
    12,947.14x = 81,219,149.14
  5. Step 5: Solve for x
    x = 81,219,149.14/12,947.14
  6. Step 6: Final answer
    x = 6,273.13

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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.