Home / 12,914.71-19,371.38-4,148.94

Finding the Fourth Proportional to 12,914.71, 19,371.38 and 4,148.94

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Solution

The fourth proportional to 12,914.71, 19,371.38 and 4,148.94 is: 6,223.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,914.71 : 19,371.38 = 4,148.94 : x
  2. Step 2: Convert to fraction form
    12,914.71/19,371.38 = 4,148.94/x
  3. Step 3: Cross multiply
    12,914.71x = 19,371.38 × 4,148.94
  4. Step 4: Simplify right side
    12,914.71x = 80,370,693.34
  5. Step 5: Solve for x
    x = 80,370,693.34/12,914.71
  6. Step 6: Final answer
    x = 6,223.19

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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.