Home / 7,981.94-11,010.08-5,740.26

Finding the Fourth Proportional to 7,981.94, 11,010.08 and 5,740.26

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Solution

The fourth proportional to 7,981.94, 11,010.08 and 5,740.26 is: 7,917.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.94 : 11,010.08 = 5,740.26 : x
  2. Step 2: Convert to fraction form
    7,981.94/11,010.08 = 5,740.26/x
  3. Step 3: Cross multiply
    7,981.94x = 11,010.08 × 5,740.26
  4. Step 4: Simplify right side
    7,981.94x = 63,200,721.82
  5. Step 5: Solve for x
    x = 63,200,721.82/7,981.94
  6. Step 6: Final answer
    x = 7,917.97

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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.