Home / 12,576.72-17,356.04-6,988.24

Finding the Fourth Proportional to 12,576.72, 17,356.04 and 6,988.24

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Solution

The fourth proportional to 12,576.72, 17,356.04 and 6,988.24 is: 9,643.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,576.72 : 17,356.04 = 6,988.24 : x
  2. Step 2: Convert to fraction form
    12,576.72/17,356.04 = 6,988.24/x
  3. Step 3: Cross multiply
    12,576.72x = 17,356.04 × 6,988.24
  4. Step 4: Simplify right side
    12,576.72x = 121,288,172.97
  5. Step 5: Solve for x
    x = 121,288,172.97/12,576.72
  6. Step 6: Final answer
    x = 9,643.86

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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.