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Finding the Fourth Proportional to 26,316, 39,493.44 and 12,465

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Solution

The fourth proportional to 26,316, 39,493.44 and 12,465 is: 18,706.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,316 : 39,493.44 = 12,465 : x
  2. Step 2: Convert to fraction form
    26,316/39,493.44 = 12,465/x
  3. Step 3: Cross multiply
    26,316x = 39,493.44 × 12,465
  4. Step 4: Simplify right side
    26,316x = 492,285,729.60
  5. Step 5: Solve for x
    x = 492,285,729.60/26,316
  6. Step 6: Final answer
    x = 18,706.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.