Home / 17,717.85-26,560.35-9,921.19

Finding the Fourth Proportional to 17,717.85, 26,560.35 and 9,921.19

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Solution

The fourth proportional to 17,717.85, 26,560.35 and 9,921.19 is: 14,872.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,717.85 : 26,560.35 = 9,921.19 : x
  2. Step 2: Convert to fraction form
    17,717.85/26,560.35 = 9,921.19/x
  3. Step 3: Cross multiply
    17,717.85x = 26,560.35 × 9,921.19
  4. Step 4: Simplify right side
    17,717.85x = 263,510,278.82
  5. Step 5: Solve for x
    x = 263,510,278.82/17,717.85
  6. Step 6: Final answer
    x = 14,872.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.