Home / 13,135.91-19,706.83-4,371.17

Finding the Fourth Proportional to 13,135.91, 19,706.83 and 4,371.17

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Solution

The fourth proportional to 13,135.91, 19,706.83 and 4,371.17 is: 6,557.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,135.91 : 19,706.83 = 4,371.17 : x
  2. Step 2: Convert to fraction form
    13,135.91/19,706.83 = 4,371.17/x
  3. Step 3: Cross multiply
    13,135.91x = 19,706.83 × 4,371.17
  4. Step 4: Simplify right side
    13,135.91x = 86,141,794.63
  5. Step 5: Solve for x
    x = 86,141,794.63/13,135.91
  6. Step 6: Final answer
    x = 6,557.74

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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.