Home / 8,613.09-11,887.37-5,257.86

Finding the Fourth Proportional to 8,613.09, 11,887.37 and 5,257.86

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Solution

The fourth proportional to 8,613.09, 11,887.37 and 5,257.86 is: 7,256.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,613.09 : 11,887.37 = 5,257.86 : x
  2. Step 2: Convert to fraction form
    8,613.09/11,887.37 = 5,257.86/x
  3. Step 3: Cross multiply
    8,613.09x = 11,887.37 × 5,257.86
  4. Step 4: Simplify right side
    8,613.09x = 62,502,127.23
  5. Step 5: Solve for x
    x = 62,502,127.23/8,613.09
  6. Step 6: Final answer
    x = 7,256.64

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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.