Home / 6,425.20-9,637.80-5,671.90

Finding the Fourth Proportional to 6,425.20, 9,637.80 and 5,671.90

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Solution

The fourth proportional to 6,425.20, 9,637.80 and 5,671.90 is: 8,507.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,425.20 : 9,637.80 = 5,671.90 : x
  2. Step 2: Convert to fraction form
    6,425.20/9,637.80 = 5,671.90/x
  3. Step 3: Cross multiply
    6,425.20x = 9,637.80 × 5,671.90
  4. Step 4: Simplify right side
    6,425.20x = 54,664,637.82
  5. Step 5: Solve for x
    x = 54,664,637.82/6,425.20
  6. Step 6: Final answer
    x = 8,507.85

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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.