Home / 12,532.40-18,820.26-12,143.60

Finding the Fourth Proportional to 12,532.40, 18,820.26 and 12,143.60

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Solution

The fourth proportional to 12,532.40, 18,820.26 and 12,143.60 is: 18,236.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,532.40 : 18,820.26 = 12,143.60 : x
  2. Step 2: Convert to fraction form
    12,532.40/18,820.26 = 12,143.60/x
  3. Step 3: Cross multiply
    12,532.40x = 18,820.26 × 12,143.60
  4. Step 4: Simplify right side
    12,532.40x = 228,545,709.34
  5. Step 5: Solve for x
    x = 228,545,709.34/12,532.40
  6. Step 6: Final answer
    x = 18,236.39

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1.5x scale

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.