Home / 19,516.20-29,278.35-7,830.33

Finding the Fourth Proportional to 19,516.20, 29,278.35 and 7,830.33

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Solution

The fourth proportional to 19,516.20, 29,278.35 and 7,830.33 is: 11,747.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,516.20 : 29,278.35 = 7,830.33 : x
  2. Step 2: Convert to fraction form
    19,516.20/29,278.35 = 7,830.33/x
  3. Step 3: Cross multiply
    19,516.20x = 29,278.35 × 7,830.33
  4. Step 4: Simplify right side
    19,516.20x = 229,259,244.92
  5. Step 5: Solve for x
    x = 229,259,244.92/19,516.20
  6. Step 6: Final answer
    x = 11,747.12

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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.