Home / 8,317.10-12,475.64-3,385.64

Finding the Fourth Proportional to 8,317.10, 12,475.64 and 3,385.64

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Solution

The fourth proportional to 8,317.10, 12,475.64 and 3,385.64 is: 5,078.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,317.10 : 12,475.64 = 3,385.64 : x
  2. Step 2: Convert to fraction form
    8,317.10/12,475.64 = 3,385.64/x
  3. Step 3: Cross multiply
    8,317.10x = 12,475.64 × 3,385.64
  4. Step 4: Simplify right side
    8,317.10x = 42,238,025.81
  5. Step 5: Solve for x
    x = 42,238,025.81/8,317.10
  6. Step 6: Final answer
    x = 5,078.46

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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.