Home / 17,920.06-26,879.59-4,772.55

Finding the Fourth Proportional to 17,920.06, 26,879.59 and 4,772.55

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Solution

The fourth proportional to 17,920.06, 26,879.59 and 4,772.55 is: 7,158.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,920.06 : 26,879.59 = 4,772.55 : x
  2. Step 2: Convert to fraction form
    17,920.06/26,879.59 = 4,772.55/x
  3. Step 3: Cross multiply
    17,920.06x = 26,879.59 × 4,772.55
  4. Step 4: Simplify right side
    17,920.06x = 128,284,187.25
  5. Step 5: Solve for x
    x = 128,284,187.25/17,920.06
  6. Step 6: Final answer
    x = 7,158.69

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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.