Home / 12,455.40-18,694.06-6,536.52

Finding the Fourth Proportional to 12,455.40, 18,694.06 and 6,536.52

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Solution

The fourth proportional to 12,455.40, 18,694.06 and 6,536.52 is: 9,810.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455.40 : 18,694.06 = 6,536.52 : x
  2. Step 2: Convert to fraction form
    12,455.40/18,694.06 = 6,536.52/x
  3. Step 3: Cross multiply
    12,455.40x = 18,694.06 × 6,536.52
  4. Step 4: Simplify right side
    12,455.40x = 122,194,097.07
  5. Step 5: Solve for x
    x = 122,194,097.07/12,455.40
  6. Step 6: Final answer
    x = 9,810.53

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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.