Home / 13,575.79-18,735.36-7,609.38

Finding the Fourth Proportional to 13,575.79, 18,735.36 and 7,609.38

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Solution

The fourth proportional to 13,575.79, 18,735.36 and 7,609.38 is: 10,501.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,575.79 : 18,735.36 = 7,609.38 : x
  2. Step 2: Convert to fraction form
    13,575.79/18,735.36 = 7,609.38/x
  3. Step 3: Cross multiply
    13,575.79x = 18,735.36 × 7,609.38
  4. Step 4: Simplify right side
    13,575.79x = 142,564,473.68
  5. Step 5: Solve for x
    x = 142,564,473.68/13,575.79
  6. Step 6: Final answer
    x = 10,501.38

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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.