Home / 13,669.75-18,864.26-7,382.13

Finding the Fourth Proportional to 13,669.75, 18,864.26 and 7,382.13

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Solution

The fourth proportional to 13,669.75, 18,864.26 and 7,382.13 is: 10,187.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669.75 : 18,864.26 = 7,382.13 : x
  2. Step 2: Convert to fraction form
    13,669.75/18,864.26 = 7,382.13/x
  3. Step 3: Cross multiply
    13,669.75x = 18,864.26 × 7,382.13
  4. Step 4: Simplify right side
    13,669.75x = 139,258,419.67
  5. Step 5: Solve for x
    x = 139,258,419.67/13,669.75
  6. Step 6: Final answer
    x = 10,187.34

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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.