Home / 11,181.97-15,431.28-6,146.68

Finding the Fourth Proportional to 11,181.97, 15,431.28 and 6,146.68

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Solution

The fourth proportional to 11,181.97, 15,431.28 and 6,146.68 is: 8,482.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,181.97 : 15,431.28 = 6,146.68 : x
  2. Step 2: Convert to fraction form
    11,181.97/15,431.28 = 6,146.68/x
  3. Step 3: Cross multiply
    11,181.97x = 15,431.28 × 6,146.68
  4. Step 4: Simplify right side
    11,181.97x = 94,851,032.26
  5. Step 5: Solve for x
    x = 94,851,032.26/11,181.97
  6. Step 6: Final answer
    x = 8,482.50

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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.