Home / 17,891.75-26,838.60-5,411.47

Finding the Fourth Proportional to 17,891.75, 26,838.60 and 5,411.47

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Solution

The fourth proportional to 17,891.75, 26,838.60 and 5,411.47 is: 8,117.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,891.75 : 26,838.60 = 5,411.47 : x
  2. Step 2: Convert to fraction form
    17,891.75/26,838.60 = 5,411.47/x
  3. Step 3: Cross multiply
    17,891.75x = 26,838.60 × 5,411.47
  4. Step 4: Simplify right side
    17,891.75x = 145,236,117.49
  5. Step 5: Solve for x
    x = 145,236,117.49/17,891.75
  6. Step 6: Final answer
    x = 8,117.49

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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.