Home / 12,623.07-17,418.63-7,318.20

Finding the Fourth Proportional to 12,623.07, 17,418.63 and 7,318.20

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Solution

The fourth proportional to 12,623.07, 17,418.63 and 7,318.20 is: 10,098.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,623.07 : 17,418.63 = 7,318.20 : x
  2. Step 2: Convert to fraction form
    12,623.07/17,418.63 = 7,318.20/x
  3. Step 3: Cross multiply
    12,623.07x = 17,418.63 × 7,318.20
  4. Step 4: Simplify right side
    12,623.07x = 127,473,018.07
  5. Step 5: Solve for x
    x = 127,473,018.07/12,623.07
  6. Step 6: Final answer
    x = 10,098.42

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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.