Home / 13,350.77-18,425.42-7,382.89

Finding the Fourth Proportional to 13,350.77, 18,425.42 and 7,382.89

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Solution

The fourth proportional to 13,350.77, 18,425.42 and 7,382.89 is: 10,189.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,350.77 : 18,425.42 = 7,382.89 : x
  2. Step 2: Convert to fraction form
    13,350.77/18,425.42 = 7,382.89/x
  3. Step 3: Cross multiply
    13,350.77x = 18,425.42 × 7,382.89
  4. Step 4: Simplify right side
    13,350.77x = 136,032,849.06
  5. Step 5: Solve for x
    x = 136,032,849.06/13,350.77
  6. Step 6: Final answer
    x = 10,189.14

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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.