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Finding the Fourth Proportional to 14,911.10, 20,578.11 and 8,943.02

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Solution

The fourth proportional to 14,911.10, 20,578.11 and 8,943.02 is: 12,341.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,911.10 : 20,578.11 = 8,943.02 : x
  2. Step 2: Convert to fraction form
    14,911.10/20,578.11 = 8,943.02/x
  3. Step 3: Cross multiply
    14,911.10x = 20,578.11 × 8,943.02
  4. Step 4: Simplify right side
    14,911.10x = 184,030,449.29
  5. Step 5: Solve for x
    x = 184,030,449.29/14,911.10
  6. Step 6: Final answer
    x = 12,341.84

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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.