Home / 14,728.56-20,325.42-8,440.94

Finding the Fourth Proportional to 14,728.56, 20,325.42 and 8,440.94

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Solution

The fourth proportional to 14,728.56, 20,325.42 and 8,440.94 is: 11,648.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,728.56 : 20,325.42 = 8,440.94 : x
  2. Step 2: Convert to fraction form
    14,728.56/20,325.42 = 8,440.94/x
  3. Step 3: Cross multiply
    14,728.56x = 20,325.42 × 8,440.94
  4. Step 4: Simplify right side
    14,728.56x = 171,565,650.69
  5. Step 5: Solve for x
    x = 171,565,650.69/14,728.56
  6. Step 6: Final answer
    x = 11,648.50

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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.