Home / 8,290.79-12,423.13-4,950.86

Finding the Fourth Proportional to 8,290.79, 12,423.13 and 4,950.86

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Solution

The fourth proportional to 8,290.79, 12,423.13 and 4,950.86 is: 7,418.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,290.79 : 12,423.13 = 4,950.86 : x
  2. Step 2: Convert to fraction form
    8,290.79/12,423.13 = 4,950.86/x
  3. Step 3: Cross multiply
    8,290.79x = 12,423.13 × 4,950.86
  4. Step 4: Simplify right side
    8,290.79x = 61,505,149.49
  5. Step 5: Solve for x
    x = 61,505,149.49/8,290.79
  6. Step 6: Final answer
    x = 7,418.49

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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.