Home / 17,761.17-26,639.63-13,816.37

Finding the Fourth Proportional to 17,761.17, 26,639.63 and 13,816.37

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Solution

The fourth proportional to 17,761.17, 26,639.63 and 13,816.37 is: 20,722.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,761.17 : 26,639.63 = 13,816.37 : x
  2. Step 2: Convert to fraction form
    17,761.17/26,639.63 = 13,816.37/x
  3. Step 3: Cross multiply
    17,761.17x = 26,639.63 × 13,816.37
  4. Step 4: Simplify right side
    17,761.17x = 368,063,111.79
  5. Step 5: Solve for x
    x = 368,063,111.79/17,761.17
  6. Step 6: Final answer
    x = 20,722.90

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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.