Home / 12,719.64-19,083.60-6,146.56

Finding the Fourth Proportional to 12,719.64, 19,083.60 and 6,146.56

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Solution

The fourth proportional to 12,719.64, 19,083.60 and 6,146.56 is: 9,221.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,719.64 : 19,083.60 = 6,146.56 : x
  2. Step 2: Convert to fraction form
    12,719.64/19,083.60 = 6,146.56/x
  3. Step 3: Cross multiply
    12,719.64x = 19,083.60 × 6,146.56
  4. Step 4: Simplify right side
    12,719.64x = 117,298,492.42
  5. Step 5: Solve for x
    x = 117,298,492.42/12,719.64
  6. Step 6: Final answer
    x = 9,221.84

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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.