Home / 8,261.45-12,392.20-5,807.25

Finding the Fourth Proportional to 8,261.45, 12,392.20 and 5,807.25

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Solution

The fourth proportional to 8,261.45, 12,392.20 and 5,807.25 is: 8,710.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,261.45 : 12,392.20 = 5,807.25 : x
  2. Step 2: Convert to fraction form
    8,261.45/12,392.20 = 5,807.25/x
  3. Step 3: Cross multiply
    8,261.45x = 12,392.20 × 5,807.25
  4. Step 4: Simplify right side
    8,261.45x = 71,964,603.45
  5. Step 5: Solve for x
    x = 71,964,603.45/8,261.45
  6. Step 6: Final answer
    x = 8,710.89

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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.