Home / 15,349.80-21,183.48-8,635.08

Finding the Fourth Proportional to 15,349.80, 21,183.48 and 8,635.08

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Solution

The fourth proportional to 15,349.80, 21,183.48 and 8,635.08 is: 11,916.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,349.80 : 21,183.48 = 8,635.08 : x
  2. Step 2: Convert to fraction form
    15,349.80/21,183.48 = 8,635.08/x
  3. Step 3: Cross multiply
    15,349.80x = 21,183.48 × 8,635.08
  4. Step 4: Simplify right side
    15,349.80x = 182,921,044.48
  5. Step 5: Solve for x
    x = 182,921,044.48/15,349.80
  6. Step 6: Final answer
    x = 11,916.84

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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.