Home / 12,318.49-16,997.56-7,013.41

Finding the Fourth Proportional to 12,318.49, 16,997.56 and 7,013.41

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Solution

The fourth proportional to 12,318.49, 16,997.56 and 7,013.41 is: 9,677.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,318.49 : 16,997.56 = 7,013.41 : x
  2. Step 2: Convert to fraction form
    12,318.49/16,997.56 = 7,013.41/x
  3. Step 3: Cross multiply
    12,318.49x = 16,997.56 × 7,013.41
  4. Step 4: Simplify right side
    12,318.49x = 119,210,900.44
  5. Step 5: Solve for x
    x = 119,210,900.44/12,318.49
  6. Step 6: Final answer
    x = 9,677.39

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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.