Home / 13,286.60-19,922.70-5,486.60

Finding the Fourth Proportional to 13,286.60, 19,922.70 and 5,486.60

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Solution

The fourth proportional to 13,286.60, 19,922.70 and 5,486.60 is: 8,226.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286.60 : 19,922.70 = 5,486.60 : x
  2. Step 2: Convert to fraction form
    13,286.60/19,922.70 = 5,486.60/x
  3. Step 3: Cross multiply
    13,286.60x = 19,922.70 × 5,486.60
  4. Step 4: Simplify right side
    13,286.60x = 109,307,885.82
  5. Step 5: Solve for x
    x = 109,307,885.82/13,286.60
  6. Step 6: Final answer
    x = 8,226.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.