Home / 13,269.68-18,313.44-7,302.51

Finding the Fourth Proportional to 13,269.68, 18,313.44 and 7,302.51

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Solution

The fourth proportional to 13,269.68, 18,313.44 and 7,302.51 is: 10,078.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,269.68 : 18,313.44 = 7,302.51 : x
  2. Step 2: Convert to fraction form
    13,269.68/18,313.44 = 7,302.51/x
  3. Step 3: Cross multiply
    13,269.68x = 18,313.44 × 7,302.51
  4. Step 4: Simplify right side
    13,269.68x = 133,734,078.73
  5. Step 5: Solve for x
    x = 133,734,078.73/13,269.68
  6. Step 6: Final answer
    x = 10,078.17

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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.