Home / 15,555.31-21,466.43-8,481.85

Finding the Fourth Proportional to 15,555.31, 21,466.43 and 8,481.85

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Solution

The fourth proportional to 15,555.31, 21,466.43 and 8,481.85 is: 11,705.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,555.31 : 21,466.43 = 8,481.85 : x
  2. Step 2: Convert to fraction form
    15,555.31/21,466.43 = 8,481.85/x
  3. Step 3: Cross multiply
    15,555.31x = 21,466.43 × 8,481.85
  4. Step 4: Simplify right side
    15,555.31x = 182,075,039.30
  5. Step 5: Solve for x
    x = 182,075,039.30/15,555.31
  6. Step 6: Final answer
    x = 11,705.01

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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.