Home / 8,681.42-13,022.21-2,107.67

Finding the Fourth Proportional to 8,681.42, 13,022.21 and 2,107.67

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Solution

The fourth proportional to 8,681.42, 13,022.21 and 2,107.67 is: 3,161.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,681.42 : 13,022.21 = 2,107.67 : x
  2. Step 2: Convert to fraction form
    8,681.42/13,022.21 = 2,107.67/x
  3. Step 3: Cross multiply
    8,681.42x = 13,022.21 × 2,107.67
  4. Step 4: Simplify right side
    8,681.42x = 27,446,461.51
  5. Step 5: Solve for x
    x = 27,446,461.51/8,681.42
  6. Step 6: Final answer
    x = 3,161.52

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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.