Home / 13,556.84-18,708.14-7,892.60

Finding the Fourth Proportional to 13,556.84, 18,708.14 and 7,892.60

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Solution

The fourth proportional to 13,556.84, 18,708.14 and 7,892.60 is: 10,891.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,556.84 : 18,708.14 = 7,892.60 : x
  2. Step 2: Convert to fraction form
    13,556.84/18,708.14 = 7,892.60/x
  3. Step 3: Cross multiply
    13,556.84x = 18,708.14 × 7,892.60
  4. Step 4: Simplify right side
    13,556.84x = 147,655,865.76
  5. Step 5: Solve for x
    x = 147,655,865.76/13,556.84
  6. Step 6: Final answer
    x = 10,891.61

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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.