Home / 18,750.24-25,896.60-12,771.54

Finding the Fourth Proportional to 18,750.24, 25,896.60 and 12,771.54

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Solution

The fourth proportional to 18,750.24, 25,896.60 and 12,771.54 is: 17,639.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,750.24 : 25,896.60 = 12,771.54 : x
  2. Step 2: Convert to fraction form
    18,750.24/25,896.60 = 12,771.54/x
  3. Step 3: Cross multiply
    18,750.24x = 25,896.60 × 12,771.54
  4. Step 4: Simplify right side
    18,750.24x = 330,739,462.76
  5. Step 5: Solve for x
    x = 330,739,462.76/18,750.24
  6. Step 6: Final answer
    x = 17,639.21

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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.