Home / 18,958.86-26,158.95-11,403.18

Finding the Fourth Proportional to 18,958.86, 26,158.95 and 11,403.18

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Solution

The fourth proportional to 18,958.86, 26,158.95 and 11,403.18 is: 15,733.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,958.86 : 26,158.95 = 11,403.18 : x
  2. Step 2: Convert to fraction form
    18,958.86/26,158.95 = 11,403.18/x
  3. Step 3: Cross multiply
    18,958.86x = 26,158.95 × 11,403.18
  4. Step 4: Simplify right side
    18,958.86x = 298,295,215.46
  5. Step 5: Solve for x
    x = 298,295,215.46/18,958.86
  6. Step 6: Final answer
    x = 15,733.82

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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.