Home / 13,771.08-20,668.86-9,077.94

Finding the Fourth Proportional to 13,771.08, 20,668.86 and 9,077.94

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Solution

The fourth proportional to 13,771.08, 20,668.86 and 9,077.94 is: 13,624.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,771.08 : 20,668.86 = 9,077.94 : x
  2. Step 2: Convert to fraction form
    13,771.08/20,668.86 = 9,077.94/x
  3. Step 3: Cross multiply
    13,771.08x = 20,668.86 × 9,077.94
  4. Step 4: Simplify right side
    13,771.08x = 187,630,670.95
  5. Step 5: Solve for x
    x = 187,630,670.95/13,771.08
  6. Step 6: Final answer
    x = 13,624.98

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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.