Home / 15,555.56-21,467.24-8,842.32

Finding the Fourth Proportional to 15,555.56, 21,467.24 and 8,842.32

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Solution

The fourth proportional to 15,555.56, 21,467.24 and 8,842.32 is: 12,202.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,555.56 : 21,467.24 = 8,842.32 : x
  2. Step 2: Convert to fraction form
    15,555.56/21,467.24 = 8,842.32/x
  3. Step 3: Cross multiply
    15,555.56x = 21,467.24 × 8,842.32
  4. Step 4: Simplify right side
    15,555.56x = 189,820,205.60
  5. Step 5: Solve for x
    x = 189,820,205.60/15,555.56
  6. Step 6: Final answer
    x = 12,202.72

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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.