Home / 15,349.89-21,182.62-8,635.52

Finding the Fourth Proportional to 15,349.89, 21,182.62 and 8,635.52

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Solution

The fourth proportional to 15,349.89, 21,182.62 and 8,635.52 is: 11,916.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,349.89 : 21,182.62 = 8,635.52 : x
  2. Step 2: Convert to fraction form
    15,349.89/21,182.62 = 8,635.52/x
  3. Step 3: Cross multiply
    15,349.89x = 21,182.62 × 8,635.52
  4. Step 4: Simplify right side
    15,349.89x = 182,922,789.57
  5. Step 5: Solve for x
    x = 182,922,789.57/15,349.89
  6. Step 6: Final answer
    x = 11,916.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.