Home / 8,493.20-12,739.79-5,570.82

Finding the Fourth Proportional to 8,493.20, 12,739.79 and 5,570.82

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Solution

The fourth proportional to 8,493.20, 12,739.79 and 5,570.82 is: 8,356.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,493.20 : 12,739.79 = 5,570.82 : x
  2. Step 2: Convert to fraction form
    8,493.20/12,739.79 = 5,570.82/x
  3. Step 3: Cross multiply
    8,493.20x = 12,739.79 × 5,570.82
  4. Step 4: Simplify right side
    8,493.20x = 70,971,076.93
  5. Step 5: Solve for x
    x = 70,971,076.93/8,493.20
  6. Step 6: Final answer
    x = 8,356.22

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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.