Home / 15,555.84-21,466.80-8,482.38

Finding the Fourth Proportional to 15,555.84, 21,466.80 and 8,482.38

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Solution

The fourth proportional to 15,555.84, 21,466.80 and 8,482.38 is: 11,705.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,555.84 : 21,466.80 = 8,482.38 : x
  2. Step 2: Convert to fraction form
    15,555.84/21,466.80 = 8,482.38/x
  3. Step 3: Cross multiply
    15,555.84x = 21,466.80 × 8,482.38
  4. Step 4: Simplify right side
    15,555.84x = 182,089,554.98
  5. Step 5: Solve for x
    x = 182,089,554.98/15,555.84
  6. Step 6: Final answer
    x = 11,705.54

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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.