Home / 14,208.40-19,619.99-8,912.35

Finding the Fourth Proportional to 14,208.40, 19,619.99 and 8,912.35

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Solution

The fourth proportional to 14,208.40, 19,619.99 and 8,912.35 is: 12,306.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,208.40 : 19,619.99 = 8,912.35 : x
  2. Step 2: Convert to fraction form
    14,208.40/19,619.99 = 8,912.35/x
  3. Step 3: Cross multiply
    14,208.40x = 19,619.99 × 8,912.35
  4. Step 4: Simplify right side
    14,208.40x = 174,860,217.88
  5. Step 5: Solve for x
    x = 174,860,217.88/14,208.40
  6. Step 6: Final answer
    x = 12,306.82

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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.