Home / 18,769.56-25,897.63-11,218.33

Finding the Fourth Proportional to 18,769.56, 25,897.63 and 11,218.33

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Solution

The fourth proportional to 18,769.56, 25,897.63 and 11,218.33 is: 15,478.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,769.56 : 25,897.63 = 11,218.33 : x
  2. Step 2: Convert to fraction form
    18,769.56/25,897.63 = 11,218.33/x
  3. Step 3: Cross multiply
    18,769.56x = 25,897.63 × 11,218.33
  4. Step 4: Simplify right side
    18,769.56x = 290,528,159.56
  5. Step 5: Solve for x
    x = 290,528,159.56/18,769.56
  6. Step 6: Final answer
    x = 15,478.69

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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.