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Finding the Fourth Proportional to 11,886.26, 16,403.02 and 6,918.26

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Solution

The fourth proportional to 11,886.26, 16,403.02 and 6,918.26 is: 9,547.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,886.26 : 16,403.02 = 6,918.26 : x
  2. Step 2: Convert to fraction form
    11,886.26/16,403.02 = 6,918.26/x
  3. Step 3: Cross multiply
    11,886.26x = 16,403.02 × 6,918.26
  4. Step 4: Simplify right side
    11,886.26x = 113,480,357.15
  5. Step 5: Solve for x
    x = 113,480,357.15/11,886.26
  6. Step 6: Final answer
    x = 9,547.19

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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.