Home / 13,524.79-18,665.09-7,556.50

Finding the Fourth Proportional to 13,524.79, 18,665.09 and 7,556.50

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Solution

The fourth proportional to 13,524.79, 18,665.09 and 7,556.50 is: 10,428.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,524.79 : 18,665.09 = 7,556.50 : x
  2. Step 2: Convert to fraction form
    13,524.79/18,665.09 = 7,556.50/x
  3. Step 3: Cross multiply
    13,524.79x = 18,665.09 × 7,556.50
  4. Step 4: Simplify right side
    13,524.79x = 141,042,659.26
  5. Step 5: Solve for x
    x = 141,042,659.26/13,524.79
  6. Step 6: Final answer
    x = 10,428.45

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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.