Home / 12,914.72-19,339.26-8,518.86

Finding the Fourth Proportional to 12,914.72, 19,339.26 and 8,518.86

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Solution

The fourth proportional to 12,914.72, 19,339.26 and 8,518.86 is: 12,756.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,914.72 : 19,339.26 = 8,518.86 : x
  2. Step 2: Convert to fraction form
    12,914.72/19,339.26 = 8,518.86/x
  3. Step 3: Cross multiply
    12,914.72x = 19,339.26 × 8,518.86
  4. Step 4: Simplify right side
    12,914.72x = 164,748,448.44
  5. Step 5: Solve for x
    x = 164,748,448.44/12,914.72
  6. Step 6: Final answer
    x = 12,756.64

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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.