Home / 13,636.29-18,813.56-11,114.07

Finding the Fourth Proportional to 13,636.29, 18,813.56 and 11,114.07

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Solution

The fourth proportional to 13,636.29, 18,813.56 and 11,114.07 is: 15,333.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.29 : 18,813.56 = 11,114.07 : x
  2. Step 2: Convert to fraction form
    13,636.29/18,813.56 = 11,114.07/x
  3. Step 3: Cross multiply
    13,636.29x = 18,813.56 × 11,114.07
  4. Step 4: Simplify right side
    13,636.29x = 209,095,222.79
  5. Step 5: Solve for x
    x = 209,095,222.79/13,636.29
  6. Step 6: Final answer
    x = 15,333.73

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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.