Home / 13,351.71-18,426.16-7,383.25

Finding the Fourth Proportional to 13,351.71, 18,426.16 and 7,383.25

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Solution

The fourth proportional to 13,351.71, 18,426.16 and 7,383.25 is: 10,189.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,351.71 : 18,426.16 = 7,383.25 : x
  2. Step 2: Convert to fraction form
    13,351.71/18,426.16 = 7,383.25/x
  3. Step 3: Cross multiply
    13,351.71x = 18,426.16 × 7,383.25
  4. Step 4: Simplify right side
    13,351.71x = 136,044,957.32
  5. Step 5: Solve for x
    x = 136,044,957.32/13,351.71
  6. Step 6: Final answer
    x = 10,189.33

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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.