Home / 19,380.79-26,747.96-11,825.52

Finding the Fourth Proportional to 19,380.79, 26,747.96 and 11,825.52

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Solution

The fourth proportional to 19,380.79, 26,747.96 and 11,825.52 is: 16,320.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,380.79 : 26,747.96 = 11,825.52 : x
  2. Step 2: Convert to fraction form
    19,380.79/26,747.96 = 11,825.52/x
  3. Step 3: Cross multiply
    19,380.79x = 26,747.96 × 11,825.52
  4. Step 4: Simplify right side
    19,380.79x = 316,308,443.03
  5. Step 5: Solve for x
    x = 316,308,443.03/19,380.79
  6. Step 6: Final answer
    x = 16,320.72

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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.