Home / 18,715.20-28,048.46-7,608.93

Finding the Fourth Proportional to 18,715.20, 28,048.46 and 7,608.93

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Solution

The fourth proportional to 18,715.20, 28,048.46 and 7,608.93 is: 11,403.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,715.20 : 28,048.46 = 7,608.93 : x
  2. Step 2: Convert to fraction form
    18,715.20/28,048.46 = 7,608.93/x
  3. Step 3: Cross multiply
    18,715.20x = 28,048.46 × 7,608.93
  4. Step 4: Simplify right side
    18,715.20x = 213,418,730.70
  5. Step 5: Solve for x
    x = 213,418,730.70/18,715.20
  6. Step 6: Final answer
    x = 11,403.50

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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.