Home / 12,318.36-17,000.58-7,284.21

Finding the Fourth Proportional to 12,318.36, 17,000.58 and 7,284.21

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Solution

The fourth proportional to 12,318.36, 17,000.58 and 7,284.21 is: 10,052.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,318.36 : 17,000.58 = 7,284.21 : x
  2. Step 2: Convert to fraction form
    12,318.36/17,000.58 = 7,284.21/x
  3. Step 3: Cross multiply
    12,318.36x = 17,000.58 × 7,284.21
  4. Step 4: Simplify right side
    12,318.36x = 123,835,794.84
  5. Step 5: Solve for x
    x = 123,835,794.84/12,318.36
  6. Step 6: Final answer
    x = 10,052.94

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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.