Home / 12,674.64-18,998.77-4,771.72

Finding the Fourth Proportional to 12,674.64, 18,998.77 and 4,771.72

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Solution

The fourth proportional to 12,674.64, 18,998.77 and 4,771.72 is: 7,152.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,674.64 : 18,998.77 = 4,771.72 : x
  2. Step 2: Convert to fraction form
    12,674.64/18,998.77 = 4,771.72/x
  3. Step 3: Cross multiply
    12,674.64x = 18,998.77 × 4,771.72
  4. Step 4: Simplify right side
    12,674.64x = 90,656,810.78
  5. Step 5: Solve for x
    x = 90,656,810.78/12,674.64
  6. Step 6: Final answer
    x = 7,152.61

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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.