Home / 14,058.37-21,120.36-8,219.08

Finding the Fourth Proportional to 14,058.37, 21,120.36 and 8,219.08

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Solution

The fourth proportional to 14,058.37, 21,120.36 and 8,219.08 is: 12,347.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,058.37 : 21,120.36 = 8,219.08 : x
  2. Step 2: Convert to fraction form
    14,058.37/21,120.36 = 8,219.08/x
  3. Step 3: Cross multiply
    14,058.37x = 21,120.36 × 8,219.08
  4. Step 4: Simplify right side
    14,058.37x = 173,589,928.47
  5. Step 5: Solve for x
    x = 173,589,928.47/14,058.37
  6. Step 6: Final answer
    x = 12,347.80

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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.