Home / 8,157.35-12,240.63-3,476.87

Finding the Fourth Proportional to 8,157.35, 12,240.63 and 3,476.87

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Solution

The fourth proportional to 8,157.35, 12,240.63 and 3,476.87 is: 5,217.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,157.35 : 12,240.63 = 3,476.87 : x
  2. Step 2: Convert to fraction form
    8,157.35/12,240.63 = 3,476.87/x
  3. Step 3: Cross multiply
    8,157.35x = 12,240.63 × 3,476.87
  4. Step 4: Simplify right side
    8,157.35x = 42,559,079.23
  5. Step 5: Solve for x
    x = 42,559,079.23/8,157.35
  6. Step 6: Final answer
    x = 5,217.27

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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.