Home / 18,903.30-26,086.03-10,289.19

Finding the Fourth Proportional to 18,903.30, 26,086.03 and 10,289.19

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Solution

The fourth proportional to 18,903.30, 26,086.03 and 10,289.19 is: 14,198.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,903.30 : 26,086.03 = 10,289.19 : x
  2. Step 2: Convert to fraction form
    18,903.30/26,086.03 = 10,289.19/x
  3. Step 3: Cross multiply
    18,903.30x = 26,086.03 × 10,289.19
  4. Step 4: Simplify right side
    18,903.30x = 268,404,191.12
  5. Step 5: Solve for x
    x = 268,404,191.12/18,903.30
  6. Step 6: Final answer
    x = 14,198.80

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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.