Home / 7,985.93-11,021.63-5,755.19

Finding the Fourth Proportional to 7,985.93, 11,021.63 and 5,755.19

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Solution

The fourth proportional to 7,985.93, 11,021.63 and 5,755.19 is: 7,942.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,985.93 : 11,021.63 = 5,755.19 : x
  2. Step 2: Convert to fraction form
    7,985.93/11,021.63 = 5,755.19/x
  3. Step 3: Cross multiply
    7,985.93x = 11,021.63 × 5,755.19
  4. Step 4: Simplify right side
    7,985.93x = 63,431,490.88
  5. Step 5: Solve for x
    x = 63,431,490.88/7,985.93
  6. Step 6: Final answer
    x = 7,942.91

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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.