Home / 18,945.48-26,145-10,988.04

Finding the Fourth Proportional to 18,945.48, 26,145 and 10,988.04

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Solution

The fourth proportional to 18,945.48, 26,145 and 10,988.04 is: 15,163.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,945.48 : 26,145 = 10,988.04 : x
  2. Step 2: Convert to fraction form
    18,945.48/26,145 = 10,988.04/x
  3. Step 3: Cross multiply
    18,945.48x = 26,145 × 10,988.04
  4. Step 4: Simplify right side
    18,945.48x = 287,282,305.80
  5. Step 5: Solve for x
    x = 287,282,305.80/18,945.48
  6. Step 6: Final answer
    x = 15,163.63

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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.