Home / 19,809.79-27,337.50-11,426.29

Finding the Fourth Proportional to 19,809.79, 27,337.50 and 11,426.29

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Solution

The fourth proportional to 19,809.79, 27,337.50 and 11,426.29 is: 15,768.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,809.79 : 27,337.50 = 11,426.29 : x
  2. Step 2: Convert to fraction form
    19,809.79/27,337.50 = 11,426.29/x
  3. Step 3: Cross multiply
    19,809.79x = 27,337.50 × 11,426.29
  4. Step 4: Simplify right side
    19,809.79x = 312,366,202.88
  5. Step 5: Solve for x
    x = 312,366,202.88/19,809.79
  6. Step 6: Final answer
    x = 15,768.27

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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.