Home / 12,576.91-17,356.43-6,912.01

Finding the Fourth Proportional to 12,576.91, 17,356.43 and 6,912.01

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Solution

The fourth proportional to 12,576.91, 17,356.43 and 6,912.01 is: 9,538.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,576.91 : 17,356.43 = 6,912.01 : x
  2. Step 2: Convert to fraction form
    12,576.91/17,356.43 = 6,912.01/x
  3. Step 3: Cross multiply
    12,576.91x = 17,356.43 × 6,912.01
  4. Step 4: Simplify right side
    12,576.91x = 119,967,817.72
  5. Step 5: Solve for x
    x = 119,967,817.72/12,576.91
  6. Step 6: Final answer
    x = 9,538.74

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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.