Home / 13,623.66-20,445.21-4,858.65

Finding the Fourth Proportional to 13,623.66, 20,445.21 and 4,858.65

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Solution

The fourth proportional to 13,623.66, 20,445.21 and 4,858.65 is: 7,291.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623.66 : 20,445.21 = 4,858.65 : x
  2. Step 2: Convert to fraction form
    13,623.66/20,445.21 = 4,858.65/x
  3. Step 3: Cross multiply
    13,623.66x = 20,445.21 × 4,858.65
  4. Step 4: Simplify right side
    13,623.66x = 99,336,119.57
  5. Step 5: Solve for x
    x = 99,336,119.57/13,623.66
  6. Step 6: Final answer
    x = 7,291.44

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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.