Home / 13,556.67-20,338.10-7,316.55

Finding the Fourth Proportional to 13,556.67, 20,338.10 and 7,316.55

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Solution

The fourth proportional to 13,556.67, 20,338.10 and 7,316.55 is: 10,976.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,556.67 : 20,338.10 = 7,316.55 : x
  2. Step 2: Convert to fraction form
    13,556.67/20,338.10 = 7,316.55/x
  3. Step 3: Cross multiply
    13,556.67x = 20,338.10 × 7,316.55
  4. Step 4: Simplify right side
    13,556.67x = 148,804,688.97
  5. Step 5: Solve for x
    x = 148,804,688.97/13,556.67
  6. Step 6: Final answer
    x = 10,976.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.