Home / 11,117.08-16,668.29-6,664.71

Finding the Fourth Proportional to 11,117.08, 16,668.29 and 6,664.71

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Solution

The fourth proportional to 11,117.08, 16,668.29 and 6,664.71 is: 9,992.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,117.08 : 16,668.29 = 6,664.71 : x
  2. Step 2: Convert to fraction form
    11,117.08/16,668.29 = 6,664.71/x
  3. Step 3: Cross multiply
    11,117.08x = 16,668.29 × 6,664.71
  4. Step 4: Simplify right side
    11,117.08x = 111,089,335.71
  5. Step 5: Solve for x
    x = 111,089,335.71/11,117.08
  6. Step 6: Final answer
    x = 9,992.67

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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.