Home / 12,852.72-19,269.74-8,682.39

Finding the Fourth Proportional to 12,852.72, 19,269.74 and 8,682.39

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Solution

The fourth proportional to 12,852.72, 19,269.74 and 8,682.39 is: 13,017.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,852.72 : 19,269.74 = 8,682.39 : x
  2. Step 2: Convert to fraction form
    12,852.72/19,269.74 = 8,682.39/x
  3. Step 3: Cross multiply
    12,852.72x = 19,269.74 × 8,682.39
  4. Step 4: Simplify right side
    12,852.72x = 167,307,354.47
  5. Step 5: Solve for x
    x = 167,307,354.47/12,852.72
  6. Step 6: Final answer
    x = 13,017.27

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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.