Home / 11,685.47-17,528.24-2,920.39

Finding the Fourth Proportional to 11,685.47, 17,528.24 and 2,920.39

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Solution

The fourth proportional to 11,685.47, 17,528.24 and 2,920.39 is: 4,380.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,685.47 : 17,528.24 = 2,920.39 : x
  2. Step 2: Convert to fraction form
    11,685.47/17,528.24 = 2,920.39/x
  3. Step 3: Cross multiply
    11,685.47x = 17,528.24 × 2,920.39
  4. Step 4: Simplify right side
    11,685.47x = 51,189,260.29
  5. Step 5: Solve for x
    x = 51,189,260.29/11,685.47
  6. Step 6: Final answer
    x = 4,380.59

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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.