Home / 11,489.84-15,854.99-6,453.66

Finding the Fourth Proportional to 11,489.84, 15,854.99 and 6,453.66

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Solution

The fourth proportional to 11,489.84, 15,854.99 and 6,453.66 is: 8,905.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,489.84 : 15,854.99 = 6,453.66 : x
  2. Step 2: Convert to fraction form
    11,489.84/15,854.99 = 6,453.66/x
  3. Step 3: Cross multiply
    11,489.84x = 15,854.99 × 6,453.66
  4. Step 4: Simplify right side
    11,489.84x = 102,322,714.76
  5. Step 5: Solve for x
    x = 102,322,714.76/11,489.84
  6. Step 6: Final answer
    x = 8,905.50

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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.