Home / 19,150.80-28,730.52-7,905.84

Finding the Fourth Proportional to 19,150.80, 28,730.52 and 7,905.84

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Solution

The fourth proportional to 19,150.80, 28,730.52 and 7,905.84 is: 11,860.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,150.80 : 28,730.52 = 7,905.84 : x
  2. Step 2: Convert to fraction form
    19,150.80/28,730.52 = 7,905.84/x
  3. Step 3: Cross multiply
    19,150.80x = 28,730.52 × 7,905.84
  4. Step 4: Simplify right side
    19,150.80x = 227,138,894.24
  5. Step 5: Solve for x
    x = 227,138,894.24/19,150.80
  6. Step 6: Final answer
    x = 11,860.54

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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.