Home / 18,965.07-28,447.61-10,536.92

Finding the Fourth Proportional to 18,965.07, 28,447.61 and 10,536.92

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Solution

The fourth proportional to 18,965.07, 28,447.61 and 10,536.92 is: 15,805.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,965.07 : 28,447.61 = 10,536.92 : x
  2. Step 2: Convert to fraction form
    18,965.07/28,447.61 = 10,536.92/x
  3. Step 3: Cross multiply
    18,965.07x = 28,447.61 × 10,536.92
  4. Step 4: Simplify right side
    18,965.07x = 299,749,995.84
  5. Step 5: Solve for x
    x = 299,749,995.84/18,965.07
  6. Step 6: Final answer
    x = 15,805.37

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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.