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Finding the Fourth Proportional to 14,493.36, 20,001.12 and 8,904.36

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Solution

The fourth proportional to 14,493.36, 20,001.12 and 8,904.36 is: 12,288.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,493.36 : 20,001.12 = 8,904.36 : x
  2. Step 2: Convert to fraction form
    14,493.36/20,001.12 = 8,904.36/x
  3. Step 3: Cross multiply
    14,493.36x = 20,001.12 × 8,904.36
  4. Step 4: Simplify right side
    14,493.36x = 178,097,172.88
  5. Step 5: Solve for x
    x = 178,097,172.88/14,493.36
  6. Step 6: Final answer
    x = 12,288.19

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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.