Home / 12,590.78-17,367.62-9,058.77

Finding the Fourth Proportional to 12,590.78, 17,367.62 and 9,058.77

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Solution

The fourth proportional to 12,590.78, 17,367.62 and 9,058.77 is: 12,495.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,590.78 : 17,367.62 = 9,058.77 : x
  2. Step 2: Convert to fraction form
    12,590.78/17,367.62 = 9,058.77/x
  3. Step 3: Cross multiply
    12,590.78x = 17,367.62 × 9,058.77
  4. Step 4: Simplify right side
    12,590.78x = 157,329,229.73
  5. Step 5: Solve for x
    x = 157,329,229.73/12,590.78
  6. Step 6: Final answer
    x = 12,495.60

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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.