Home / 12,837.09-17,705.70-8,116.81

Finding the Fourth Proportional to 12,837.09, 17,705.70 and 8,116.81

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Solution

The fourth proportional to 12,837.09, 17,705.70 and 8,116.81 is: 11,195.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,837.09 : 17,705.70 = 8,116.81 : x
  2. Step 2: Convert to fraction form
    12,837.09/17,705.70 = 8,116.81/x
  3. Step 3: Cross multiply
    12,837.09x = 17,705.70 × 8,116.81
  4. Step 4: Simplify right side
    12,837.09x = 143,713,877.52
  5. Step 5: Solve for x
    x = 143,713,877.52/12,837.09
  6. Step 6: Final answer
    x = 11,195.21

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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.