Home / 7,615.81-11,423.72-4,108.71

Finding the Fourth Proportional to 7,615.81, 11,423.72 and 4,108.71

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Solution

The fourth proportional to 7,615.81, 11,423.72 and 4,108.71 is: 6,163.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,615.81 : 11,423.72 = 4,108.71 : x
  2. Step 2: Convert to fraction form
    7,615.81/11,423.72 = 4,108.71/x
  3. Step 3: Cross multiply
    7,615.81x = 11,423.72 × 4,108.71
  4. Step 4: Simplify right side
    7,615.81x = 46,936,752.60
  5. Step 5: Solve for x
    x = 46,936,752.60/7,615.81
  6. Step 6: Final answer
    x = 6,163.07

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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.