Home / 12,964.49-17,890.78-7,299.22

Finding the Fourth Proportional to 12,964.49, 17,890.78 and 7,299.22

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Solution

The fourth proportional to 12,964.49, 17,890.78 and 7,299.22 is: 10,072.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,964.49 : 17,890.78 = 7,299.22 : x
  2. Step 2: Convert to fraction form
    12,964.49/17,890.78 = 7,299.22/x
  3. Step 3: Cross multiply
    12,964.49x = 17,890.78 × 7,299.22
  4. Step 4: Simplify right side
    12,964.49x = 130,588,739.19
  5. Step 5: Solve for x
    x = 130,588,739.19/12,964.49
  6. Step 6: Final answer
    x = 10,072.80

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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.