Home / 19,007.92-28,511.88-5,156.56

Finding the Fourth Proportional to 19,007.92, 28,511.88 and 5,156.56

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Solution

The fourth proportional to 19,007.92, 28,511.88 and 5,156.56 is: 7,734.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,007.92 : 28,511.88 = 5,156.56 : x
  2. Step 2: Convert to fraction form
    19,007.92/28,511.88 = 5,156.56/x
  3. Step 3: Cross multiply
    19,007.92x = 28,511.88 × 5,156.56
  4. Step 4: Simplify right side
    19,007.92x = 147,023,219.93
  5. Step 5: Solve for x
    x = 147,023,219.93/19,007.92
  6. Step 6: Final answer
    x = 7,734.84

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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.