Home / 12,296.72-16,969.56-6,991.22

Finding the Fourth Proportional to 12,296.72, 16,969.56 and 6,991.22

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Solution

The fourth proportional to 12,296.72, 16,969.56 and 6,991.22 is: 9,647.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,296.72 : 16,969.56 = 6,991.22 : x
  2. Step 2: Convert to fraction form
    12,296.72/16,969.56 = 6,991.22/x
  3. Step 3: Cross multiply
    12,296.72x = 16,969.56 × 6,991.22
  4. Step 4: Simplify right side
    12,296.72x = 118,637,927.26
  5. Step 5: Solve for x
    x = 118,637,927.26/12,296.72
  6. Step 6: Final answer
    x = 9,647.93

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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.