Home / 14,647.79-20,213.49-8,274.62

Finding the Fourth Proportional to 14,647.79, 20,213.49 and 8,274.62

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Solution

The fourth proportional to 14,647.79, 20,213.49 and 8,274.62 is: 11,418.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,647.79 : 20,213.49 = 8,274.62 : x
  2. Step 2: Convert to fraction form
    14,647.79/20,213.49 = 8,274.62/x
  3. Step 3: Cross multiply
    14,647.79x = 20,213.49 × 8,274.62
  4. Step 4: Simplify right side
    14,647.79x = 167,258,948.62
  5. Step 5: Solve for x
    x = 167,258,948.62/14,647.79
  6. Step 6: Final answer
    x = 11,418.72

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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.