Home / 12,971.28-19,454.86-4,204.14

Finding the Fourth Proportional to 12,971.28, 19,454.86 and 4,204.14

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Solution

The fourth proportional to 12,971.28, 19,454.86 and 4,204.14 is: 6,305.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,971.28 : 19,454.86 = 4,204.14 : x
  2. Step 2: Convert to fraction form
    12,971.28/19,454.86 = 4,204.14/x
  3. Step 3: Cross multiply
    12,971.28x = 19,454.86 × 4,204.14
  4. Step 4: Simplify right side
    12,971.28x = 81,790,955.12
  5. Step 5: Solve for x
    x = 81,790,955.12/12,971.28
  6. Step 6: Final answer
    x = 6,305.54

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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.