Home / 13,366.71-18,450.17-7,705.24

Finding the Fourth Proportional to 13,366.71, 18,450.17 and 7,705.24

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Solution

The fourth proportional to 13,366.71, 18,450.17 and 7,705.24 is: 10,635.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,366.71 : 18,450.17 = 7,705.24 : x
  2. Step 2: Convert to fraction form
    13,366.71/18,450.17 = 7,705.24/x
  3. Step 3: Cross multiply
    13,366.71x = 18,450.17 × 7,705.24
  4. Step 4: Simplify right side
    13,366.71x = 142,163,025.08
  5. Step 5: Solve for x
    x = 142,163,025.08/13,366.71
  6. Step 6: Final answer
    x = 10,635.60

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Find fourth proportional to 13,367.71, 18,451.55 and 7,706.24
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.