Home / 12,112.79-16,715.01-6,807.26

Finding the Fourth Proportional to 12,112.79, 16,715.01 and 6,807.26

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Solution

The fourth proportional to 12,112.79, 16,715.01 and 6,807.26 is: 9,393.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,112.79 : 16,715.01 = 6,807.26 : x
  2. Step 2: Convert to fraction form
    12,112.79/16,715.01 = 6,807.26/x
  3. Step 3: Cross multiply
    12,112.79x = 16,715.01 × 6,807.26
  4. Step 4: Simplify right side
    12,112.79x = 113,783,418.97
  5. Step 5: Solve for x
    x = 113,783,418.97/12,112.79
  6. Step 6: Final answer
    x = 9,393.66

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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.