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Finding the Fourth Proportional to 12,137.73, 16,750.07 and 7,102.91

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Solution

The fourth proportional to 12,137.73, 16,750.07 and 7,102.91 is: 9,802.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,137.73 : 16,750.07 = 7,102.91 : x
  2. Step 2: Convert to fraction form
    12,137.73/16,750.07 = 7,102.91/x
  3. Step 3: Cross multiply
    12,137.73x = 16,750.07 × 7,102.91
  4. Step 4: Simplify right side
    12,137.73x = 118,974,204.19
  5. Step 5: Solve for x
    x = 118,974,204.19/12,137.73
  6. Step 6: Final answer
    x = 9,802.02

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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.