Home / 13,263.22-18,297.09-7,948.81

Finding the Fourth Proportional to 13,263.22, 18,297.09 and 7,948.81

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Solution

The fourth proportional to 13,263.22, 18,297.09 and 7,948.81 is: 10,965.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,263.22 : 18,297.09 = 7,948.81 : x
  2. Step 2: Convert to fraction form
    13,263.22/18,297.09 = 7,948.81/x
  3. Step 3: Cross multiply
    13,263.22x = 18,297.09 × 7,948.81
  4. Step 4: Simplify right side
    13,263.22x = 145,440,091.96
  5. Step 5: Solve for x
    x = 145,440,091.96/13,263.22
  6. Step 6: Final answer
    x = 10,965.67

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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.