Home / 18,900.19-26,083.38-10,945.18

Finding the Fourth Proportional to 18,900.19, 26,083.38 and 10,945.18

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Solution

The fourth proportional to 18,900.19, 26,083.38 and 10,945.18 is: 15,105.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,900.19 : 26,083.38 = 10,945.18 : x
  2. Step 2: Convert to fraction form
    18,900.19/26,083.38 = 10,945.18/x
  3. Step 3: Cross multiply
    18,900.19x = 26,083.38 × 10,945.18
  4. Step 4: Simplify right side
    18,900.19x = 285,487,289.11
  5. Step 5: Solve for x
    x = 285,487,289.11/18,900.19
  6. Step 6: Final answer
    x = 15,105.00

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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.