Home / 11,618.79-17,428.26-2,853.72

Finding the Fourth Proportional to 11,618.79, 17,428.26 and 2,853.72

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Solution

The fourth proportional to 11,618.79, 17,428.26 and 2,853.72 is: 4,280.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,618.79 : 17,428.26 = 2,853.72 : x
  2. Step 2: Convert to fraction form
    11,618.79/17,428.26 = 2,853.72/x
  3. Step 3: Cross multiply
    11,618.79x = 17,428.26 × 2,853.72
  4. Step 4: Simplify right side
    11,618.79x = 49,735,374.13
  5. Step 5: Solve for x
    x = 49,735,374.13/11,618.79
  6. Step 6: Final answer
    x = 4,280.60

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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.