Home / 12,453.78-17,186.24-6,788.58

Finding the Fourth Proportional to 12,453.78, 17,186.24 and 6,788.58

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Solution

The fourth proportional to 12,453.78, 17,186.24 and 6,788.58 is: 9,368.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,453.78 : 17,186.24 = 6,788.58 : x
  2. Step 2: Convert to fraction form
    12,453.78/17,186.24 = 6,788.58/x
  3. Step 3: Cross multiply
    12,453.78x = 17,186.24 × 6,788.58
  4. Step 4: Simplify right side
    12,453.78x = 116,670,117.66
  5. Step 5: Solve for x
    x = 116,670,117.66/12,453.78
  6. Step 6: Final answer
    x = 9,368.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.