Home / 12,556.16-17,326.71-6,890.60

Finding the Fourth Proportional to 12,556.16, 17,326.71 and 6,890.60

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Solution

The fourth proportional to 12,556.16, 17,326.71 and 6,890.60 is: 9,508.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,556.16 : 17,326.71 = 6,890.60 : x
  2. Step 2: Convert to fraction form
    12,556.16/17,326.71 = 6,890.60/x
  3. Step 3: Cross multiply
    12,556.16x = 17,326.71 × 6,890.60
  4. Step 4: Simplify right side
    12,556.16x = 119,391,427.93
  5. Step 5: Solve for x
    x = 119,391,427.93/12,556.16
  6. Step 6: Final answer
    x = 9,508.59

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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.