Home / 18,900.56-26,081.16-10,517.84

Finding the Fourth Proportional to 18,900.56, 26,081.16 and 10,517.84

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Solution

The fourth proportional to 18,900.56, 26,081.16 and 10,517.84 is: 14,513.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,900.56 : 26,081.16 = 10,517.84 : x
  2. Step 2: Convert to fraction form
    18,900.56/26,081.16 = 10,517.84/x
  3. Step 3: Cross multiply
    18,900.56x = 26,081.16 × 10,517.84
  4. Step 4: Simplify right side
    18,900.56x = 274,317,467.89
  5. Step 5: Solve for x
    x = 274,317,467.89/18,900.56
  6. Step 6: Final answer
    x = 14,513.72

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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.