Home / 18,456.18-25,470.63-13,972.83

Finding the Fourth Proportional to 18,456.18, 25,470.63 and 13,972.83

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Solution

The fourth proportional to 18,456.18, 25,470.63 and 13,972.83 is: 19,283.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,456.18 : 25,470.63 = 13,972.83 : x
  2. Step 2: Convert to fraction form
    18,456.18/25,470.63 = 13,972.83/x
  3. Step 3: Cross multiply
    18,456.18x = 25,470.63 × 13,972.83
  4. Step 4: Simplify right side
    18,456.18x = 355,896,782.98
  5. Step 5: Solve for x
    x = 355,896,782.98/18,456.18
  6. Step 6: Final answer
    x = 19,283.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.