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Finding the Fourth Proportional to 14,855.79, 20,499.03 and 8,885.28

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Solution

The fourth proportional to 14,855.79, 20,499.03 and 8,885.28 is: 12,260.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,855.79 : 20,499.03 = 8,885.28 : x
  2. Step 2: Convert to fraction form
    14,855.79/20,499.03 = 8,885.28/x
  3. Step 3: Cross multiply
    14,855.79x = 20,499.03 × 8,885.28
  4. Step 4: Simplify right side
    14,855.79x = 182,139,621.28
  5. Step 5: Solve for x
    x = 182,139,621.28/14,855.79
  6. Step 6: Final answer
    x = 12,260.51

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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.