Home / 12,011.85-18,017.69-3,246.75

Finding the Fourth Proportional to 12,011.85, 18,017.69 and 3,246.75

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Solution

The fourth proportional to 12,011.85, 18,017.69 and 3,246.75 is: 4,870.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,011.85 : 18,017.69 = 3,246.75 : x
  2. Step 2: Convert to fraction form
    12,011.85/18,017.69 = 3,246.75/x
  3. Step 3: Cross multiply
    12,011.85x = 18,017.69 × 3,246.75
  4. Step 4: Simplify right side
    12,011.85x = 58,498,918.77
  5. Step 5: Solve for x
    x = 58,498,918.77/12,011.85
  6. Step 6: Final answer
    x = 4,870.10

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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.