Home / 15,582.21-21,503.34-8,508.66

Finding the Fourth Proportional to 15,582.21, 21,503.34 and 8,508.66

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Solution

The fourth proportional to 15,582.21, 21,503.34 and 8,508.66 is: 11,741.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,582.21 : 21,503.34 = 8,508.66 : x
  2. Step 2: Convert to fraction form
    15,582.21/21,503.34 = 8,508.66/x
  3. Step 3: Cross multiply
    15,582.21x = 21,503.34 × 8,508.66
  4. Step 4: Simplify right side
    15,582.21x = 182,964,608.92
  5. Step 5: Solve for x
    x = 182,964,608.92/15,582.21
  6. Step 6: Final answer
    x = 11,741.89

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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.