Home / 19,471.76-26,864.84-11,516.72

Finding the Fourth Proportional to 19,471.76, 26,864.84 and 11,516.72

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Solution

The fourth proportional to 19,471.76, 26,864.84 and 11,516.72 is: 15,889.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,471.76 : 26,864.84 = 11,516.72 : x
  2. Step 2: Convert to fraction form
    19,471.76/26,864.84 = 11,516.72/x
  3. Step 3: Cross multiply
    19,471.76x = 26,864.84 × 11,516.72
  4. Step 4: Simplify right side
    19,471.76x = 309,394,840.12
  5. Step 5: Solve for x
    x = 309,394,840.12/19,471.76
  6. Step 6: Final answer
    x = 15,889.41

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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.