Home / 14,487.40-19,992.50-8,199.56

Finding the Fourth Proportional to 14,487.40, 19,992.50 and 8,199.56

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Solution

The fourth proportional to 14,487.40, 19,992.50 and 8,199.56 is: 11,315.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,487.40 : 19,992.50 = 8,199.56 : x
  2. Step 2: Convert to fraction form
    14,487.40/19,992.50 = 8,199.56/x
  3. Step 3: Cross multiply
    14,487.40x = 19,992.50 × 8,199.56
  4. Step 4: Simplify right side
    14,487.40x = 163,929,703.30
  5. Step 5: Solve for x
    x = 163,929,703.30/14,487.40
  6. Step 6: Final answer
    x = 11,315.33

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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.