Home / 18,764.28-28,124.43-10,440.36

Finding the Fourth Proportional to 18,764.28, 28,124.43 and 10,440.36

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Solution

The fourth proportional to 18,764.28, 28,124.43 and 10,440.36 is: 15,648.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,764.28 : 28,124.43 = 10,440.36 : x
  2. Step 2: Convert to fraction form
    18,764.28/28,124.43 = 10,440.36/x
  3. Step 3: Cross multiply
    18,764.28x = 28,124.43 × 10,440.36
  4. Step 4: Simplify right side
    18,764.28x = 293,629,173.99
  5. Step 5: Solve for x
    x = 293,629,173.99/18,764.28
  6. Step 6: Final answer
    x = 15,648.30

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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.