Home / 12,374.21-17,074.79-6,997.39

Finding the Fourth Proportional to 12,374.21, 17,074.79 and 6,997.39

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Solution

The fourth proportional to 12,374.21, 17,074.79 and 6,997.39 is: 9,655.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,374.21 : 17,074.79 = 6,997.39 : x
  2. Step 2: Convert to fraction form
    12,374.21/17,074.79 = 6,997.39/x
  3. Step 3: Cross multiply
    12,374.21x = 17,074.79 × 6,997.39
  4. Step 4: Simplify right side
    12,374.21x = 119,478,887.12
  5. Step 5: Solve for x
    x = 119,478,887.12/12,374.21
  6. Step 6: Final answer
    x = 9,655.47

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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.