Home / 15,793.80-21,794.52-9,074.70

Finding the Fourth Proportional to 15,793.80, 21,794.52 and 9,074.70

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Solution

The fourth proportional to 15,793.80, 21,794.52 and 9,074.70 is: 12,522.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,793.80 : 21,794.52 = 9,074.70 : x
  2. Step 2: Convert to fraction form
    15,793.80/21,794.52 = 9,074.70/x
  3. Step 3: Cross multiply
    15,793.80x = 21,794.52 × 9,074.70
  4. Step 4: Simplify right side
    15,793.80x = 197,778,730.64
  5. Step 5: Solve for x
    x = 197,778,730.64/15,793.80
  6. Step 6: Final answer
    x = 12,522.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.