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Finding the Fourth Proportional to 12,276.67, 18,415.12 and 6,726.99

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Solution

The fourth proportional to 12,276.67, 18,415.12 and 6,726.99 is: 10,090.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,276.67 : 18,415.12 = 6,726.99 : x
  2. Step 2: Convert to fraction form
    12,276.67/18,415.12 = 6,726.99/x
  3. Step 3: Cross multiply
    12,276.67x = 18,415.12 × 6,726.99
  4. Step 4: Simplify right side
    12,276.67x = 123,878,303.40
  5. Step 5: Solve for x
    x = 123,878,303.40/12,276.67
  6. Step 6: Final answer
    x = 10,090.54

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1.5x scale

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.