Home / 13,333.73-18,400.43-7,365.78

Finding the Fourth Proportional to 13,333.73, 18,400.43 and 7,365.78

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Solution

The fourth proportional to 13,333.73, 18,400.43 and 7,365.78 is: 10,164.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,333.73 : 18,400.43 = 7,365.78 : x
  2. Step 2: Convert to fraction form
    13,333.73/18,400.43 = 7,365.78/x
  3. Step 3: Cross multiply
    13,333.73x = 18,400.43 × 7,365.78
  4. Step 4: Simplify right side
    13,333.73x = 135,533,537.70
  5. Step 5: Solve for x
    x = 135,533,537.70/13,333.73
  6. Step 6: Final answer
    x = 10,164.72

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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.