Home / 13,518.86-20,277.84-12,707.24

Finding the Fourth Proportional to 13,518.86, 20,277.84 and 12,707.24

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Solution

The fourth proportional to 13,518.86, 20,277.84 and 12,707.24 is: 19,060.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,518.86 : 20,277.84 = 12,707.24 : x
  2. Step 2: Convert to fraction form
    13,518.86/20,277.84 = 12,707.24/x
  3. Step 3: Cross multiply
    13,518.86x = 20,277.84 × 12,707.24
  4. Step 4: Simplify right side
    13,518.86x = 257,675,379.56
  5. Step 5: Solve for x
    x = 257,675,379.56/13,518.86
  6. Step 6: Final answer
    x = 19,060.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.