Home / 12,063.21-18,074.04-9,429.69

Finding the Fourth Proportional to 12,063.21, 18,074.04 and 9,429.69

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Solution

The fourth proportional to 12,063.21, 18,074.04 and 9,429.69 is: 14,128.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,063.21 : 18,074.04 = 9,429.69 : x
  2. Step 2: Convert to fraction form
    12,063.21/18,074.04 = 9,429.69/x
  3. Step 3: Cross multiply
    12,063.21x = 18,074.04 × 9,429.69
  4. Step 4: Simplify right side
    12,063.21x = 170,432,594.25
  5. Step 5: Solve for x
    x = 170,432,594.25/12,063.21
  6. Step 6: Final answer
    x = 14,128.30

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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.