Home / 14,647.28-20,212.79-8,274.15

Finding the Fourth Proportional to 14,647.28, 20,212.79 and 8,274.15

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Solution

The fourth proportional to 14,647.28, 20,212.79 and 8,274.15 is: 11,418.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,647.28 : 20,212.79 = 8,274.15 : x
  2. Step 2: Convert to fraction form
    14,647.28/20,212.79 = 8,274.15/x
  3. Step 3: Cross multiply
    14,647.28x = 20,212.79 × 8,274.15
  4. Step 4: Simplify right side
    14,647.28x = 167,243,615.01
  5. Step 5: Solve for x
    x = 167,243,615.01/14,647.28
  6. Step 6: Final answer
    x = 11,418.07

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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.