Home / 8,439.96-12,660.95-3,512.93

Finding the Fourth Proportional to 8,439.96, 12,660.95 and 3,512.93

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Solution

The fourth proportional to 8,439.96, 12,660.95 and 3,512.93 is: 5,269.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.96 : 12,660.95 = 3,512.93 : x
  2. Step 2: Convert to fraction form
    8,439.96/12,660.95 = 3,512.93/x
  3. Step 3: Cross multiply
    8,439.96x = 12,660.95 × 3,512.93
  4. Step 4: Simplify right side
    8,439.96x = 44,477,031.08
  5. Step 5: Solve for x
    x = 44,477,031.08/8,439.96
  6. Step 6: Final answer
    x = 5,269.82

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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.