Home / 18,018.97-27,029.14-4,871.34

Finding the Fourth Proportional to 18,018.97, 27,029.14 and 4,871.34

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Solution

The fourth proportional to 18,018.97, 27,029.14 and 4,871.34 is: 7,307.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,018.97 : 27,029.14 = 4,871.34 : x
  2. Step 2: Convert to fraction form
    18,018.97/27,029.14 = 4,871.34/x
  3. Step 3: Cross multiply
    18,018.97x = 27,029.14 × 4,871.34
  4. Step 4: Simplify right side
    18,018.97x = 131,668,118.67
  5. Step 5: Solve for x
    x = 131,668,118.67/18,018.97
  6. Step 6: Final answer
    x = 7,307.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.