Home / 12,668.40-19,002.88-3,903.32

Finding the Fourth Proportional to 12,668.40, 19,002.88 and 3,903.32

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Solution

The fourth proportional to 12,668.40, 19,002.88 and 3,903.32 is: 5,855.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,668.40 : 19,002.88 = 3,903.32 : x
  2. Step 2: Convert to fraction form
    12,668.40/19,002.88 = 3,903.32/x
  3. Step 3: Cross multiply
    12,668.40x = 19,002.88 × 3,903.32
  4. Step 4: Simplify right side
    12,668.40x = 74,174,321.56
  5. Step 5: Solve for x
    x = 74,174,321.56/12,668.40
  6. Step 6: Final answer
    x = 5,855.07

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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.