Home / 18,909.66-28,382.01-9,556.29

Finding the Fourth Proportional to 18,909.66, 28,382.01 and 9,556.29

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Solution

The fourth proportional to 18,909.66, 28,382.01 and 9,556.29 is: 14,343.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,909.66 : 28,382.01 = 9,556.29 : x
  2. Step 2: Convert to fraction form
    18,909.66/28,382.01 = 9,556.29/x
  3. Step 3: Cross multiply
    18,909.66x = 28,382.01 × 9,556.29
  4. Step 4: Simplify right side
    18,909.66x = 271,226,718.34
  5. Step 5: Solve for x
    x = 271,226,718.34/18,909.66
  6. Step 6: Final answer
    x = 14,343.29

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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.