Home / 14,113.71-21,170.36-3,440.11

Finding the Fourth Proportional to 14,113.71, 21,170.36 and 3,440.11

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Solution

The fourth proportional to 14,113.71, 21,170.36 and 3,440.11 is: 5,160.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,113.71 : 21,170.36 = 3,440.11 : x
  2. Step 2: Convert to fraction form
    14,113.71/21,170.36 = 3,440.11/x
  3. Step 3: Cross multiply
    14,113.71x = 21,170.36 × 3,440.11
  4. Step 4: Simplify right side
    14,113.71x = 72,828,367.14
  5. Step 5: Solve for x
    x = 72,828,367.14/14,113.71
  6. Step 6: Final answer
    x = 5,160.12

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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.