Home / 14,389.45-21,584.21-5,618.21

Finding the Fourth Proportional to 14,389.45, 21,584.21 and 5,618.21

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Solution

The fourth proportional to 14,389.45, 21,584.21 and 5,618.21 is: 8,427.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,389.45 : 21,584.21 = 5,618.21 : x
  2. Step 2: Convert to fraction form
    14,389.45/21,584.21 = 5,618.21/x
  3. Step 3: Cross multiply
    14,389.45x = 21,584.21 × 5,618.21
  4. Step 4: Simplify right side
    14,389.45x = 121,264,609.86
  5. Step 5: Solve for x
    x = 121,264,609.86/14,389.45
  6. Step 6: Final answer
    x = 8,427.33

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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.