Home / 12,113.89-18,166.07-5,097.26

Finding the Fourth Proportional to 12,113.89, 18,166.07 and 5,097.26

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Solution

The fourth proportional to 12,113.89, 18,166.07 and 5,097.26 is: 7,643.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,113.89 : 18,166.07 = 5,097.26 : x
  2. Step 2: Convert to fraction form
    12,113.89/18,166.07 = 5,097.26/x
  3. Step 3: Cross multiply
    12,113.89x = 18,166.07 × 5,097.26
  4. Step 4: Simplify right side
    12,113.89x = 92,597,181.97
  5. Step 5: Solve for x
    x = 92,597,181.97/12,113.89
  6. Step 6: Final answer
    x = 7,643.89

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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.