Home / 15,733.32-21,711.60-8,659.68

Finding the Fourth Proportional to 15,733.32, 21,711.60 and 8,659.68

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Solution

The fourth proportional to 15,733.32, 21,711.60 and 8,659.68 is: 11,950.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,733.32 : 21,711.60 = 8,659.68 : x
  2. Step 2: Convert to fraction form
    15,733.32/21,711.60 = 8,659.68/x
  3. Step 3: Cross multiply
    15,733.32x = 21,711.60 × 8,659.68
  4. Step 4: Simplify right side
    15,733.32x = 188,015,508.29
  5. Step 5: Solve for x
    x = 188,015,508.29/15,733.32
  6. Step 6: Final answer
    x = 11,950.15

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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.