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Finding the Fourth Proportional to 14,807, 20,438.20 and 8,523.56

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Solution

The fourth proportional to 14,807, 20,438.20 and 8,523.56 is: 11,765.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,807 : 20,438.20 = 8,523.56 : x
  2. Step 2: Convert to fraction form
    14,807/20,438.20 = 8,523.56/x
  3. Step 3: Cross multiply
    14,807x = 20,438.20 × 8,523.56
  4. Step 4: Simplify right side
    14,807x = 174,206,223.99
  5. Step 5: Solve for x
    x = 174,206,223.99/14,807
  6. Step 6: Final answer
    x = 11,765.13

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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.