Home / 8,401.20-12,601.68-2,558.16

Finding the Fourth Proportional to 8,401.20, 12,601.68 and 2,558.16

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Solution

The fourth proportional to 8,401.20, 12,601.68 and 2,558.16 is: 3,837.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,401.20 : 12,601.68 = 2,558.16 : x
  2. Step 2: Convert to fraction form
    8,401.20/12,601.68 = 2,558.16/x
  3. Step 3: Cross multiply
    8,401.20x = 12,601.68 × 2,558.16
  4. Step 4: Simplify right side
    8,401.20x = 32,237,113.71
  5. Step 5: Solve for x
    x = 32,237,113.71/8,401.20
  6. Step 6: Final answer
    x = 3,837.20

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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.