Home / 8,313.41-12,466.47-3,115.64

Finding the Fourth Proportional to 8,313.41, 12,466.47 and 3,115.64

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Solution

The fourth proportional to 8,313.41, 12,466.47 and 3,115.64 is: 4,672.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,313.41 : 12,466.47 = 3,115.64 : x
  2. Step 2: Convert to fraction form
    8,313.41/12,466.47 = 3,115.64/x
  3. Step 3: Cross multiply
    8,313.41x = 12,466.47 × 3,115.64
  4. Step 4: Simplify right side
    8,313.41x = 38,840,970.26
  5. Step 5: Solve for x
    x = 38,840,970.26/8,313.41
  6. Step 6: Final answer
    x = 4,672.09

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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.