Home / 13,641.82-20,461.34-8,576.21

Finding the Fourth Proportional to 13,641.82, 20,461.34 and 8,576.21

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Solution

The fourth proportional to 13,641.82, 20,461.34 and 8,576.21 is: 12,863.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,641.82 : 20,461.34 = 8,576.21 : x
  2. Step 2: Convert to fraction form
    13,641.82/20,461.34 = 8,576.21/x
  3. Step 3: Cross multiply
    13,641.82x = 20,461.34 × 8,576.21
  4. Step 4: Simplify right side
    13,641.82x = 175,480,821.32
  5. Step 5: Solve for x
    x = 175,480,821.32/13,641.82
  6. Step 6: Final answer
    x = 12,863.45

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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.