Home / 7,982.45-11,010.77-5,740.77

Finding the Fourth Proportional to 7,982.45, 11,010.77 and 5,740.77

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Solution

The fourth proportional to 7,982.45, 11,010.77 and 5,740.77 is: 7,918.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,982.45 : 11,010.77 = 5,740.77 : x
  2. Step 2: Convert to fraction form
    7,982.45/11,010.77 = 5,740.77/x
  3. Step 3: Cross multiply
    7,982.45x = 11,010.77 × 5,740.77
  4. Step 4: Simplify right side
    7,982.45x = 63,210,269.39
  5. Step 5: Solve for x
    x = 63,210,269.39/7,982.45
  6. Step 6: Final answer
    x = 7,918.66

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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.