Home / 18,769.16-25,903.22-11,215.33

Finding the Fourth Proportional to 18,769.16, 25,903.22 and 11,215.33

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Solution

The fourth proportional to 18,769.16, 25,903.22 and 11,215.33 is: 15,478.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,769.16 : 25,903.22 = 11,215.33 : x
  2. Step 2: Convert to fraction form
    18,769.16/25,903.22 = 11,215.33/x
  3. Step 3: Cross multiply
    18,769.16x = 25,903.22 × 11,215.33
  4. Step 4: Simplify right side
    18,769.16x = 290,513,185.23
  5. Step 5: Solve for x
    x = 290,513,185.23/18,769.16
  6. Step 6: Final answer
    x = 15,478.22

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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.