Home / 14,363.21-19,821.58-7,990.25

Finding the Fourth Proportional to 14,363.21, 19,821.58 and 7,990.25

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Solution

The fourth proportional to 14,363.21, 19,821.58 and 7,990.25 is: 11,026.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,363.21 : 19,821.58 = 7,990.25 : x
  2. Step 2: Convert to fraction form
    14,363.21/19,821.58 = 7,990.25/x
  3. Step 3: Cross multiply
    14,363.21x = 19,821.58 × 7,990.25
  4. Step 4: Simplify right side
    14,363.21x = 158,379,260.51
  5. Step 5: Solve for x
    x = 158,379,260.51/14,363.21
  6. Step 6: Final answer
    x = 11,026.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.