Home / 15,555.94-21,467.64-8,482.75

Finding the Fourth Proportional to 15,555.94, 21,467.64 and 8,482.75

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Solution

The fourth proportional to 15,555.94, 21,467.64 and 8,482.75 is: 11,706.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,555.94 : 21,467.64 = 8,482.75 : x
  2. Step 2: Convert to fraction form
    15,555.94/21,467.64 = 8,482.75/x
  3. Step 3: Cross multiply
    15,555.94x = 21,467.64 × 8,482.75
  4. Step 4: Simplify right side
    15,555.94x = 182,104,623.21
  5. Step 5: Solve for x
    x = 182,104,623.21/15,555.94
  6. Step 6: Final answer
    x = 11,706.44

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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.