Home / 15,055.62-20,777.52-9,087.20

Finding the Fourth Proportional to 15,055.62, 20,777.52 and 9,087.20

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Solution

The fourth proportional to 15,055.62, 20,777.52 and 9,087.20 is: 12,540.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,055.62 : 20,777.52 = 9,087.20 : x
  2. Step 2: Convert to fraction form
    15,055.62/20,777.52 = 9,087.20/x
  3. Step 3: Cross multiply
    15,055.62x = 20,777.52 × 9,087.20
  4. Step 4: Simplify right side
    15,055.62x = 188,809,479.74
  5. Step 5: Solve for x
    x = 188,809,479.74/15,055.62
  6. Step 6: Final answer
    x = 12,540.80

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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.