Home / 15,631.09-23,457.57-6,872.15

Finding the Fourth Proportional to 15,631.09, 23,457.57 and 6,872.15

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Solution

The fourth proportional to 15,631.09, 23,457.57 and 6,872.15 is: 10,313.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,631.09 : 23,457.57 = 6,872.15 : x
  2. Step 2: Convert to fraction form
    15,631.09/23,457.57 = 6,872.15/x
  3. Step 3: Cross multiply
    15,631.09x = 23,457.57 × 6,872.15
  4. Step 4: Simplify right side
    15,631.09x = 161,203,972.55
  5. Step 5: Solve for x
    x = 161,203,972.55/15,631.09
  6. Step 6: Final answer
    x = 10,313.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.