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Finding the Fourth Proportional to 12,497.78, 17,211.93 and 12,225.62

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Solution

The fourth proportional to 12,497.78, 17,211.93 and 12,225.62 is: 16,837.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,497.78 : 17,211.93 = 12,225.62 : x
  2. Step 2: Convert to fraction form
    12,497.78/17,211.93 = 12,225.62/x
  3. Step 3: Cross multiply
    12,497.78x = 17,211.93 × 12,225.62
  4. Step 4: Simplify right side
    12,497.78x = 210,426,429.59
  5. Step 5: Solve for x
    x = 210,426,429.59/12,497.78
  6. Step 6: Final answer
    x = 16,837.11

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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.