Home / 12,679.19-17,497.13-7,013.50

Finding the Fourth Proportional to 12,679.19, 17,497.13 and 7,013.50

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Solution

The fourth proportional to 12,679.19, 17,497.13 and 7,013.50 is: 9,678.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,679.19 : 17,497.13 = 7,013.50 : x
  2. Step 2: Convert to fraction form
    12,679.19/17,497.13 = 7,013.50/x
  3. Step 3: Cross multiply
    12,679.19x = 17,497.13 × 7,013.50
  4. Step 4: Simplify right side
    12,679.19x = 122,716,042.44
  5. Step 5: Solve for x
    x = 122,716,042.44/12,679.19
  6. Step 6: Final answer
    x = 9,678.54

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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.