Home / 18,689.66-28,029.71-5,538.96

Finding the Fourth Proportional to 18,689.66, 28,029.71 and 5,538.96

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Solution

The fourth proportional to 18,689.66, 28,029.71 and 5,538.96 is: 8,307.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,689.66 : 28,029.71 = 5,538.96 : x
  2. Step 2: Convert to fraction form
    18,689.66/28,029.71 = 5,538.96/x
  3. Step 3: Cross multiply
    18,689.66x = 28,029.71 × 5,538.96
  4. Step 4: Simplify right side
    18,689.66x = 155,255,414.81
  5. Step 5: Solve for x
    x = 155,255,414.81/18,689.66
  6. Step 6: Final answer
    x = 8,307.02

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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.