Home / 13,236.96-18,266.93-7,187.07

Finding the Fourth Proportional to 13,236.96, 18,266.93 and 7,187.07

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Solution

The fourth proportional to 13,236.96, 18,266.93 and 7,187.07 is: 9,918.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,236.96 : 18,266.93 = 7,187.07 : x
  2. Step 2: Convert to fraction form
    13,236.96/18,266.93 = 7,187.07/x
  3. Step 3: Cross multiply
    13,236.96x = 18,266.93 × 7,187.07
  4. Step 4: Simplify right side
    13,236.96x = 131,285,613.26
  5. Step 5: Solve for x
    x = 131,285,613.26/13,236.96
  6. Step 6: Final answer
    x = 9,918.11

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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.