Home / 13,398.09-18,504.18-10,409.39

Finding the Fourth Proportional to 13,398.09, 18,504.18 and 10,409.39

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Solution

The fourth proportional to 13,398.09, 18,504.18 and 10,409.39 is: 14,376.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,398.09 : 18,504.18 = 10,409.39 : x
  2. Step 2: Convert to fraction form
    13,398.09/18,504.18 = 10,409.39/x
  3. Step 3: Cross multiply
    13,398.09x = 18,504.18 × 10,409.39
  4. Step 4: Simplify right side
    13,398.09x = 192,617,133.73
  5. Step 5: Solve for x
    x = 192,617,133.73/13,398.09
  6. Step 6: Final answer
    x = 14,376.46

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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.