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Finding the Fourth Proportional to 12,903.44, 17,814.13 and 9,872.98

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Solution

The fourth proportional to 12,903.44, 17,814.13 and 9,872.98 is: 13,630.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,903.44 : 17,814.13 = 9,872.98 : x
  2. Step 2: Convert to fraction form
    12,903.44/17,814.13 = 9,872.98/x
  3. Step 3: Cross multiply
    12,903.44x = 17,814.13 × 9,872.98
  4. Step 4: Simplify right side
    12,903.44x = 175,878,479.99
  5. Step 5: Solve for x
    x = 175,878,479.99/12,903.44
  6. Step 6: Final answer
    x = 13,630.36

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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.