Home / 13,106.39-19,640.14-9,626.63

Finding the Fourth Proportional to 13,106.39, 19,640.14 and 9,626.63

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Solution

The fourth proportional to 13,106.39, 19,640.14 and 9,626.63 is: 14,425.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,106.39 : 19,640.14 = 9,626.63 : x
  2. Step 2: Convert to fraction form
    13,106.39/19,640.14 = 9,626.63/x
  3. Step 3: Cross multiply
    13,106.39x = 19,640.14 × 9,626.63
  4. Step 4: Simplify right side
    13,106.39x = 189,068,367.19
  5. Step 5: Solve for x
    x = 189,068,367.19/13,106.39
  6. Step 6: Final answer
    x = 14,425.66

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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.