Home / 18,495.87-25,558.11-13,181.46

Finding the Fourth Proportional to 18,495.87, 25,558.11 and 13,181.46

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Solution

The fourth proportional to 18,495.87, 25,558.11 and 13,181.46 is: 18,214.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,495.87 : 25,558.11 = 13,181.46 : x
  2. Step 2: Convert to fraction form
    18,495.87/25,558.11 = 13,181.46/x
  3. Step 3: Cross multiply
    18,495.87x = 25,558.11 × 13,181.46
  4. Step 4: Simplify right side
    18,495.87x = 336,893,204.64
  5. Step 5: Solve for x
    x = 336,893,204.64/18,495.87
  6. Step 6: Final answer
    x = 18,214.51

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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.