Home / 12,858.39-19,267.74-8,682.03

Finding the Fourth Proportional to 12,858.39, 19,267.74 and 8,682.03

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Solution

The fourth proportional to 12,858.39, 19,267.74 and 8,682.03 is: 13,009.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,858.39 : 19,267.74 = 8,682.03 : x
  2. Step 2: Convert to fraction form
    12,858.39/19,267.74 = 8,682.03/x
  3. Step 3: Cross multiply
    12,858.39x = 19,267.74 × 8,682.03
  4. Step 4: Simplify right side
    12,858.39x = 167,283,096.71
  5. Step 5: Solve for x
    x = 167,283,096.71/12,858.39
  6. Step 6: Final answer
    x = 13,009.65

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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.