Home / 8,451.90-12,659.37-4,284.75

Finding the Fourth Proportional to 8,451.90, 12,659.37 and 4,284.75

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Solution

The fourth proportional to 8,451.90, 12,659.37 and 4,284.75 is: 6,417.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,451.90 : 12,659.37 = 4,284.75 : x
  2. Step 2: Convert to fraction form
    8,451.90/12,659.37 = 4,284.75/x
  3. Step 3: Cross multiply
    8,451.90x = 12,659.37 × 4,284.75
  4. Step 4: Simplify right side
    8,451.90x = 54,242,235.61
  5. Step 5: Solve for x
    x = 54,242,235.61/8,451.90
  6. Step 6: Final answer
    x = 6,417.76

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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.