Home / 14,487.14-19,992.70-8,113.72

Finding the Fourth Proportional to 14,487.14, 19,992.70 and 8,113.72

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Solution

The fourth proportional to 14,487.14, 19,992.70 and 8,113.72 is: 11,197.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,487.14 : 19,992.70 = 8,113.72 : x
  2. Step 2: Convert to fraction form
    14,487.14/19,992.70 = 8,113.72/x
  3. Step 3: Cross multiply
    14,487.14x = 19,992.70 × 8,113.72
  4. Step 4: Simplify right side
    14,487.14x = 162,215,029.31
  5. Step 5: Solve for x
    x = 162,215,029.31/14,487.14
  6. Step 6: Final answer
    x = 11,197.17

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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.