Home / 14,778.12-20,393.81-9,472.95

Finding the Fourth Proportional to 14,778.12, 20,393.81 and 9,472.95

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Solution

The fourth proportional to 14,778.12, 20,393.81 and 9,472.95 is: 13,072.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,778.12 : 20,393.81 = 9,472.95 : x
  2. Step 2: Convert to fraction form
    14,778.12/20,393.81 = 9,472.95/x
  3. Step 3: Cross multiply
    14,778.12x = 20,393.81 × 9,472.95
  4. Step 4: Simplify right side
    14,778.12x = 193,189,542.44
  5. Step 5: Solve for x
    x = 193,189,542.44/14,778.12
  6. Step 6: Final answer
    x = 13,072.67

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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.