Home / 7,755.24-10,714.77-5,407.86

Finding the Fourth Proportional to 7,755.24, 10,714.77 and 5,407.86

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Solution

The fourth proportional to 7,755.24, 10,714.77 and 5,407.86 is: 7,471.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,755.24 : 10,714.77 = 5,407.86 : x
  2. Step 2: Convert to fraction form
    7,755.24/10,714.77 = 5,407.86/x
  3. Step 3: Cross multiply
    7,755.24x = 10,714.77 × 5,407.86
  4. Step 4: Simplify right side
    7,755.24x = 57,943,976.09
  5. Step 5: Solve for x
    x = 57,943,976.09/7,755.24
  6. Step 6: Final answer
    x = 7,471.59

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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.