Home / 13,461.93-20,175.31-8,394.03

Finding the Fourth Proportional to 13,461.93, 20,175.31 and 8,394.03

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Solution

The fourth proportional to 13,461.93, 20,175.31 and 8,394.03 is: 12,580.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,461.93 : 20,175.31 = 8,394.03 : x
  2. Step 2: Convert to fraction form
    13,461.93/20,175.31 = 8,394.03/x
  3. Step 3: Cross multiply
    13,461.93x = 20,175.31 × 8,394.03
  4. Step 4: Simplify right side
    13,461.93x = 169,352,167.89
  5. Step 5: Solve for x
    x = 169,352,167.89/13,461.93
  6. Step 6: Final answer
    x = 12,580.08

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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.