Home / 18,311.63-25,272.26-10,353.78

Finding the Fourth Proportional to 18,311.63, 25,272.26 and 10,353.78

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Solution

The fourth proportional to 18,311.63, 25,272.26 and 10,353.78 is: 14,289.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,311.63 : 25,272.26 = 10,353.78 : x
  2. Step 2: Convert to fraction form
    18,311.63/25,272.26 = 10,353.78/x
  3. Step 3: Cross multiply
    18,311.63x = 25,272.26 × 10,353.78
  4. Step 4: Simplify right side
    18,311.63x = 261,663,368.37
  5. Step 5: Solve for x
    x = 261,663,368.37/18,311.63
  6. Step 6: Final answer
    x = 14,289.47

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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.