Home / 13,106.00-18,086.09-7,137.52

Finding the Fourth Proportional to 13,106.00, 18,086.09 and 7,137.52

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Solution

The fourth proportional to 13,106.00, 18,086.09 and 7,137.52 is: 9,849.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,106.00 : 18,086.09 = 7,137.52 : x
  2. Step 2: Convert to fraction form
    13,106.00/18,086.09 = 7,137.52/x
  3. Step 3: Cross multiply
    13,106.00x = 18,086.09 × 7,137.52
  4. Step 4: Simplify right side
    13,106.00x = 129,089,748.19
  5. Step 5: Solve for x
    x = 129,089,748.19/13,106.00
  6. Step 6: Final answer
    x = 9,849.67

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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.