Home / 14,768.79-20,380.15-8,394.53

Finding the Fourth Proportional to 14,768.79, 20,380.15 and 8,394.53

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Solution

The fourth proportional to 14,768.79, 20,380.15 and 8,394.53 is: 11,584.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,768.79 : 20,380.15 = 8,394.53 : x
  2. Step 2: Convert to fraction form
    14,768.79/20,380.15 = 8,394.53/x
  3. Step 3: Cross multiply
    14,768.79x = 20,380.15 × 8,394.53
  4. Step 4: Simplify right side
    14,768.79x = 171,081,780.58
  5. Step 5: Solve for x
    x = 171,081,780.58/14,768.79
  6. Step 6: Final answer
    x = 11,584.01

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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.