Home / 18,950.34-28,391.46-11,154.90

Finding the Fourth Proportional to 18,950.34, 28,391.46 and 11,154.90

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Solution

The fourth proportional to 18,950.34, 28,391.46 and 11,154.90 is: 16,712.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,950.34 : 28,391.46 = 11,154.90 : x
  2. Step 2: Convert to fraction form
    18,950.34/28,391.46 = 11,154.90/x
  3. Step 3: Cross multiply
    18,950.34x = 28,391.46 × 11,154.90
  4. Step 4: Simplify right side
    18,950.34x = 316,703,897.15
  5. Step 5: Solve for x
    x = 316,703,897.15/18,950.34
  6. Step 6: Final answer
    x = 16,712.31

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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.