Home / 12,947.61-19,422.24-4,182.87

Finding the Fourth Proportional to 12,947.61, 19,422.24 and 4,182.87

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Solution

The fourth proportional to 12,947.61, 19,422.24 and 4,182.87 is: 6,274.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,947.61 : 19,422.24 = 4,182.87 : x
  2. Step 2: Convert to fraction form
    12,947.61/19,422.24 = 4,182.87/x
  3. Step 3: Cross multiply
    12,947.61x = 19,422.24 × 4,182.87
  4. Step 4: Simplify right side
    12,947.61x = 81,240,705.03
  5. Step 5: Solve for x
    x = 81,240,705.03/12,947.61
  6. Step 6: Final answer
    x = 6,274.57

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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.