Home / 13,285.31-18,333.73-7,316.97

Finding the Fourth Proportional to 13,285.31, 18,333.73 and 7,316.97

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Solution

The fourth proportional to 13,285.31, 18,333.73 and 7,316.97 is: 10,097.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285.31 : 18,333.73 = 7,316.97 : x
  2. Step 2: Convert to fraction form
    13,285.31/18,333.73 = 7,316.97/x
  3. Step 3: Cross multiply
    13,285.31x = 18,333.73 × 7,316.97
  4. Step 4: Simplify right side
    13,285.31x = 134,147,352.40
  5. Step 5: Solve for x
    x = 134,147,352.40/13,285.31
  6. Step 6: Final answer
    x = 10,097.42

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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.