Home / 14,369.90-21,427.95-12,622.06

Finding the Fourth Proportional to 14,369.90, 21,427.95 and 12,622.06

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Solution

The fourth proportional to 14,369.90, 21,427.95 and 12,622.06 is: 18,821.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,369.90 : 21,427.95 = 12,622.06 : x
  2. Step 2: Convert to fraction form
    14,369.90/21,427.95 = 12,622.06/x
  3. Step 3: Cross multiply
    14,369.90x = 21,427.95 × 12,622.06
  4. Step 4: Simplify right side
    14,369.90x = 270,464,700.33
  5. Step 5: Solve for x
    x = 270,464,700.33/14,369.90
  6. Step 6: Final answer
    x = 18,821.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.