Home / 11,615.79-17,423.76-2,850.72

Finding the Fourth Proportional to 11,615.79, 17,423.76 and 2,850.72

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Solution

The fourth proportional to 11,615.79, 17,423.76 and 2,850.72 is: 4,276.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,615.79 : 17,423.76 = 2,850.72 : x
  2. Step 2: Convert to fraction form
    11,615.79/17,423.76 = 2,850.72/x
  3. Step 3: Cross multiply
    11,615.79x = 17,423.76 × 2,850.72
  4. Step 4: Simplify right side
    11,615.79x = 49,670,261.11
  5. Step 5: Solve for x
    x = 49,670,261.11/11,615.79
  6. Step 6: Final answer
    x = 4,276.10

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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.