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Finding the Fourth Proportional to 12,319.00, 18,410.99 and 8,994.25

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Solution

The fourth proportional to 12,319.00, 18,410.99 and 8,994.25 is: 13,442.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,319.00 : 18,410.99 = 8,994.25 : x
  2. Step 2: Convert to fraction form
    12,319.00/18,410.99 = 8,994.25/x
  3. Step 3: Cross multiply
    12,319.00x = 18,410.99 × 8,994.25
  4. Step 4: Simplify right side
    12,319.00x = 165,593,058.58
  5. Step 5: Solve for x
    x = 165,593,058.58/12,319.00
  6. Step 6: Final answer
    x = 13,442.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.