Home / 15,537.96-21,441.78-8,464.32

Finding the Fourth Proportional to 15,537.96, 21,441.78 and 8,464.32

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Solution

The fourth proportional to 15,537.96, 21,441.78 and 8,464.32 is: 11,680.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,537.96 : 21,441.78 = 8,464.32 : x
  2. Step 2: Convert to fraction form
    15,537.96/21,441.78 = 8,464.32/x
  3. Step 3: Cross multiply
    15,537.96x = 21,441.78 × 8,464.32
  4. Step 4: Simplify right side
    15,537.96x = 181,490,087.29
  5. Step 5: Solve for x
    x = 181,490,087.29/15,537.96
  6. Step 6: Final answer
    x = 11,680.43

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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.