Home / 15,634.44-21,577.26-8,921.72

Finding the Fourth Proportional to 15,634.44, 21,577.26 and 8,921.72

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Solution

The fourth proportional to 15,634.44, 21,577.26 and 8,921.72 is: 12,312.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,634.44 : 21,577.26 = 8,921.72 : x
  2. Step 2: Convert to fraction form
    15,634.44/21,577.26 = 8,921.72/x
  3. Step 3: Cross multiply
    15,634.44x = 21,577.26 × 8,921.72
  4. Step 4: Simplify right side
    15,634.44x = 192,506,272.09
  5. Step 5: Solve for x
    x = 192,506,272.09/15,634.44
  6. Step 6: Final answer
    x = 12,312.96

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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.