Home / 11,918.31-16,448.48-6,613.16

Finding the Fourth Proportional to 11,918.31, 16,448.48 and 6,613.16

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Solution

The fourth proportional to 11,918.31, 16,448.48 and 6,613.16 is: 9,126.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.31 : 16,448.48 = 6,613.16 : x
  2. Step 2: Convert to fraction form
    11,918.31/16,448.48 = 6,613.16/x
  3. Step 3: Cross multiply
    11,918.31x = 16,448.48 × 6,613.16
  4. Step 4: Simplify right side
    11,918.31x = 108,776,339.49
  5. Step 5: Solve for x
    x = 108,776,339.49/11,918.31
  6. Step 6: Final answer
    x = 9,126.83

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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.