Home / 12,018.04-18,013.68-4,994.14

Finding the Fourth Proportional to 12,018.04, 18,013.68 and 4,994.14

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Solution

The fourth proportional to 12,018.04, 18,013.68 and 4,994.14 is: 7,485.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,018.04 : 18,013.68 = 4,994.14 : x
  2. Step 2: Convert to fraction form
    12,018.04/18,013.68 = 4,994.14/x
  3. Step 3: Cross multiply
    12,018.04x = 18,013.68 × 4,994.14
  4. Step 4: Simplify right side
    12,018.04x = 89,962,839.84
  5. Step 5: Solve for x
    x = 89,962,839.84/12,018.04
  6. Step 6: Final answer
    x = 7,485.65

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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.