Home / 8,431.14-12,652.34-3,500.78

Finding the Fourth Proportional to 8,431.14, 12,652.34 and 3,500.78

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Solution

The fourth proportional to 8,431.14, 12,652.34 and 3,500.78 is: 5,253.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431.14 : 12,652.34 = 3,500.78 : x
  2. Step 2: Convert to fraction form
    8,431.14/12,652.34 = 3,500.78/x
  3. Step 3: Cross multiply
    8,431.14x = 12,652.34 × 3,500.78
  4. Step 4: Simplify right side
    8,431.14x = 44,293,058.83
  5. Step 5: Solve for x
    x = 44,293,058.83/8,431.14
  6. Step 6: Final answer
    x = 5,253.51

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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.