Home / 15,582.12-21,503.31-8,508.54

Finding the Fourth Proportional to 15,582.12, 21,503.31 and 8,508.54

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Solution

The fourth proportional to 15,582.12, 21,503.31 and 8,508.54 is: 11,741.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,582.12 : 21,503.31 = 8,508.54 : x
  2. Step 2: Convert to fraction form
    15,582.12/21,503.31 = 8,508.54/x
  3. Step 3: Cross multiply
    15,582.12x = 21,503.31 × 8,508.54
  4. Step 4: Simplify right side
    15,582.12x = 182,961,773.27
  5. Step 5: Solve for x
    x = 182,961,773.27/15,582.12
  6. Step 6: Final answer
    x = 11,741.78

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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.