Home / 14,014.11-19,328.53-8,978.79

Finding the Fourth Proportional to 14,014.11, 19,328.53 and 8,978.79

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Solution

The fourth proportional to 14,014.11, 19,328.53 and 8,978.79 is: 12,383.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,014.11 : 19,328.53 = 8,978.79 : x
  2. Step 2: Convert to fraction form
    14,014.11/19,328.53 = 8,978.79/x
  3. Step 3: Cross multiply
    14,014.11x = 19,328.53 × 8,978.79
  4. Step 4: Simplify right side
    14,014.11x = 173,546,766.98
  5. Step 5: Solve for x
    x = 173,546,766.98/14,014.11
  6. Step 6: Final answer
    x = 12,383.72

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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.