Home / 8,516.79-12,757.77-4,130.64

Finding the Fourth Proportional to 8,516.79, 12,757.77 and 4,130.64

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Solution

The fourth proportional to 8,516.79, 12,757.77 and 4,130.64 is: 6,187.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,516.79 : 12,757.77 = 4,130.64 : x
  2. Step 2: Convert to fraction form
    8,516.79/12,757.77 = 4,130.64/x
  3. Step 3: Cross multiply
    8,516.79x = 12,757.77 × 4,130.64
  4. Step 4: Simplify right side
    8,516.79x = 52,697,755.07
  5. Step 5: Solve for x
    x = 52,697,755.07/8,516.79
  6. Step 6: Final answer
    x = 6,187.51

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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.