Home / 19,150.31-28,730.52-8,759.63

Finding the Fourth Proportional to 19,150.31, 28,730.52 and 8,759.63

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Solution

The fourth proportional to 19,150.31, 28,730.52 and 8,759.63 is: 13,141.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,150.31 : 28,730.52 = 8,759.63 : x
  2. Step 2: Convert to fraction form
    19,150.31/28,730.52 = 8,759.63/x
  3. Step 3: Cross multiply
    19,150.31x = 28,730.52 × 8,759.63
  4. Step 4: Simplify right side
    19,150.31x = 251,668,724.91
  5. Step 5: Solve for x
    x = 251,668,724.91/19,150.31
  6. Step 6: Final answer
    x = 13,141.76

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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.