Home / 17,917.80-26,869.95-5,434.17

Finding the Fourth Proportional to 17,917.80, 26,869.95 and 5,434.17

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Solution

The fourth proportional to 17,917.80, 26,869.95 and 5,434.17 is: 8,149.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,917.80 : 26,869.95 = 5,434.17 : x
  2. Step 2: Convert to fraction form
    17,917.80/26,869.95 = 5,434.17/x
  3. Step 3: Cross multiply
    17,917.80x = 26,869.95 × 5,434.17
  4. Step 4: Simplify right side
    17,917.80x = 146,015,876.19
  5. Step 5: Solve for x
    x = 146,015,876.19/17,917.80
  6. Step 6: Final answer
    x = 8,149.21

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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.