Home / 13,350.72-18,423.79-7,382.26

Finding the Fourth Proportional to 13,350.72, 18,423.79 and 7,382.26

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Solution

The fourth proportional to 13,350.72, 18,423.79 and 7,382.26 is: 10,187.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,350.72 : 18,423.79 = 7,382.26 : x
  2. Step 2: Convert to fraction form
    13,350.72/18,423.79 = 7,382.26/x
  3. Step 3: Cross multiply
    13,350.72x = 18,423.79 × 7,382.26
  4. Step 4: Simplify right side
    13,350.72x = 136,009,207.97
  5. Step 5: Solve for x
    x = 136,009,207.97/13,350.72
  6. Step 6: Final answer
    x = 10,187.41

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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.