Home / 12,964.15-17,890.09-7,299.01

Finding the Fourth Proportional to 12,964.15, 17,890.09 and 7,299.01

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Solution

The fourth proportional to 12,964.15, 17,890.09 and 7,299.01 is: 10,072.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,964.15 : 17,890.09 = 7,299.01 : x
  2. Step 2: Convert to fraction form
    12,964.15/17,890.09 = 7,299.01/x
  3. Step 3: Cross multiply
    12,964.15x = 17,890.09 × 7,299.01
  4. Step 4: Simplify right side
    12,964.15x = 130,579,945.81
  5. Step 5: Solve for x
    x = 130,579,945.81/12,964.15
  6. Step 6: Final answer
    x = 10,072.39

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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.