Home / 15,755.33-21,742.27-8,585.24

Finding the Fourth Proportional to 15,755.33, 21,742.27 and 8,585.24

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Solution

The fourth proportional to 15,755.33, 21,742.27 and 8,585.24 is: 11,847.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,755.33 : 21,742.27 = 8,585.24 : x
  2. Step 2: Convert to fraction form
    15,755.33/21,742.27 = 8,585.24/x
  3. Step 3: Cross multiply
    15,755.33x = 21,742.27 × 8,585.24
  4. Step 4: Simplify right side
    15,755.33x = 186,662,475.92
  5. Step 5: Solve for x
    x = 186,662,475.92/15,755.33
  6. Step 6: Final answer
    x = 11,847.57

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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.