Home / 19,471.86-26,872.14-11,915.82

Finding the Fourth Proportional to 19,471.86, 26,872.14 and 11,915.82

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Solution

The fourth proportional to 19,471.86, 26,872.14 and 11,915.82 is: 16,444.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,471.86 : 26,872.14 = 11,915.82 : x
  2. Step 2: Convert to fraction form
    19,471.86/26,872.14 = 11,915.82/x
  3. Step 3: Cross multiply
    19,471.86x = 26,872.14 × 11,915.82
  4. Step 4: Simplify right side
    19,471.86x = 320,203,583.25
  5. Step 5: Solve for x
    x = 320,203,583.25/19,471.86
  6. Step 6: Final answer
    x = 16,444.43

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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.