Home / 18,801.07-28,207.88-6,151.40

Finding the Fourth Proportional to 18,801.07, 28,207.88 and 6,151.40

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Solution

The fourth proportional to 18,801.07, 28,207.88 and 6,151.40 is: 9,229.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,801.07 : 28,207.88 = 6,151.40 : x
  2. Step 2: Convert to fraction form
    18,801.07/28,207.88 = 6,151.40/x
  3. Step 3: Cross multiply
    18,801.07x = 28,207.88 × 6,151.40
  4. Step 4: Simplify right side
    18,801.07x = 173,517,953.03
  5. Step 5: Solve for x
    x = 173,517,953.03/18,801.07
  6. Step 6: Final answer
    x = 9,229.15

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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.