Home / 18,869.65-26,048.04-12,738.50

Finding the Fourth Proportional to 18,869.65, 26,048.04 and 12,738.50

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Solution

The fourth proportional to 18,869.65, 26,048.04 and 12,738.50 is: 17,584.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,869.65 : 26,048.04 = 12,738.50 : x
  2. Step 2: Convert to fraction form
    18,869.65/26,048.04 = 12,738.50/x
  3. Step 3: Cross multiply
    18,869.65x = 26,048.04 × 12,738.50
  4. Step 4: Simplify right side
    18,869.65x = 331,812,957.54
  5. Step 5: Solve for x
    x = 331,812,957.54/18,869.65
  6. Step 6: Final answer
    x = 17,584.48

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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.