Home / 14,487.34-19,992.84-8,199.72

Finding the Fourth Proportional to 14,487.34, 19,992.84 and 8,199.72

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Solution

The fourth proportional to 14,487.34, 19,992.84 and 8,199.72 is: 11,315.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,487.34 : 19,992.84 = 8,199.72 : x
  2. Step 2: Convert to fraction form
    14,487.34/19,992.84 = 8,199.72/x
  3. Step 3: Cross multiply
    14,487.34x = 19,992.84 × 8,199.72
  4. Step 4: Simplify right side
    14,487.34x = 163,935,690.00
  5. Step 5: Solve for x
    x = 163,935,690.00/14,487.34
  6. Step 6: Final answer
    x = 11,315.79

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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.