Home / 18,928-26,120.64-10,545.04

Finding the Fourth Proportional to 18,928, 26,120.64 and 10,545.04

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Solution

The fourth proportional to 18,928, 26,120.64 and 10,545.04 is: 14,552.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,928 : 26,120.64 = 10,545.04 : x
  2. Step 2: Convert to fraction form
    18,928/26,120.64 = 10,545.04/x
  3. Step 3: Cross multiply
    18,928x = 26,120.64 × 10,545.04
  4. Step 4: Simplify right side
    18,928x = 275,443,193.63
  5. Step 5: Solve for x
    x = 275,443,193.63/18,928
  6. Step 6: Final answer
    x = 14,552.16

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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.