Home / 13,366.94-18,446.09-7,398.23

Finding the Fourth Proportional to 13,366.94, 18,446.09 and 7,398.23

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Solution

The fourth proportional to 13,366.94, 18,446.09 and 7,398.23 is: 10,209.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,366.94 : 18,446.09 = 7,398.23 : x
  2. Step 2: Convert to fraction form
    13,366.94/18,446.09 = 7,398.23/x
  3. Step 3: Cross multiply
    13,366.94x = 18,446.09 × 7,398.23
  4. Step 4: Simplify right side
    13,366.94x = 136,468,287.20
  5. Step 5: Solve for x
    x = 136,468,287.20/13,366.94
  6. Step 6: Final answer
    x = 10,209.39

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Double scale
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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.