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Finding the Fourth Proportional to 12,962.98, 17,893.29 and 8,989.36

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Solution

The fourth proportional to 12,962.98, 17,893.29 and 8,989.36 is: 12,408.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,962.98 : 17,893.29 = 8,989.36 : x
  2. Step 2: Convert to fraction form
    12,962.98/17,893.29 = 8,989.36/x
  3. Step 3: Cross multiply
    12,962.98x = 17,893.29 × 8,989.36
  4. Step 4: Simplify right side
    12,962.98x = 160,849,225.39
  5. Step 5: Solve for x
    x = 160,849,225.39/12,962.98
  6. Step 6: Final answer
    x = 12,408.35

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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.