Home / 14,137.30-21,216.48-5,389.30

Finding the Fourth Proportional to 14,137.30, 21,216.48 and 5,389.30

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Solution

The fourth proportional to 14,137.30, 21,216.48 and 5,389.30 is: 8,087.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,137.30 : 21,216.48 = 5,389.30 : x
  2. Step 2: Convert to fraction form
    14,137.30/21,216.48 = 5,389.30/x
  3. Step 3: Cross multiply
    14,137.30x = 21,216.48 × 5,389.30
  4. Step 4: Simplify right side
    14,137.30x = 114,341,975.66
  5. Step 5: Solve for x
    x = 114,341,975.66/14,137.30
  6. Step 6: Final answer
    x = 8,087.96

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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.