Home / 8,790.71-12,118.56-6,268.44

Finding the Fourth Proportional to 8,790.71, 12,118.56 and 6,268.44

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Solution

The fourth proportional to 8,790.71, 12,118.56 and 6,268.44 is: 8,641.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,790.71 : 12,118.56 = 6,268.44 : x
  2. Step 2: Convert to fraction form
    8,790.71/12,118.56 = 6,268.44/x
  3. Step 3: Cross multiply
    8,790.71x = 12,118.56 × 6,268.44
  4. Step 4: Simplify right side
    8,790.71x = 75,964,466.25
  5. Step 5: Solve for x
    x = 75,964,466.25/8,790.71
  6. Step 6: Final answer
    x = 8,641.45

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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.