Home / 18,947.94-28,422.27-6,470.82

Finding the Fourth Proportional to 18,947.94, 28,422.27 and 6,470.82

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Solution

The fourth proportional to 18,947.94, 28,422.27 and 6,470.82 is: 9,706.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,947.94 : 28,422.27 = 6,470.82 : x
  2. Step 2: Convert to fraction form
    18,947.94/28,422.27 = 6,470.82/x
  3. Step 3: Cross multiply
    18,947.94x = 28,422.27 × 6,470.82
  4. Step 4: Simplify right side
    18,947.94x = 183,915,393.16
  5. Step 5: Solve for x
    x = 183,915,393.16/18,947.94
  6. Step 6: Final answer
    x = 9,706.35

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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.