Home / 15,887.34-21,924.27-8,813.61

Finding the Fourth Proportional to 15,887.34, 21,924.27 and 8,813.61

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Solution

The fourth proportional to 15,887.34, 21,924.27 and 8,813.61 is: 12,162.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,887.34 : 21,924.27 = 8,813.61 : x
  2. Step 2: Convert to fraction form
    15,887.34/21,924.27 = 8,813.61/x
  3. Step 3: Cross multiply
    15,887.34x = 21,924.27 × 8,813.61
  4. Step 4: Simplify right side
    15,887.34x = 193,231,965.31
  5. Step 5: Solve for x
    x = 193,231,965.31/15,887.34
  6. Step 6: Final answer
    x = 12,162.64

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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.