Home / 12,327.39-18,466.48-7,636.28

Finding the Fourth Proportional to 12,327.39, 18,466.48 and 7,636.28

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Solution

The fourth proportional to 12,327.39, 18,466.48 and 7,636.28 is: 11,439.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,327.39 : 18,466.48 = 7,636.28 : x
  2. Step 2: Convert to fraction form
    12,327.39/18,466.48 = 7,636.28/x
  3. Step 3: Cross multiply
    12,327.39x = 18,466.48 × 7,636.28
  4. Step 4: Simplify right side
    12,327.39x = 141,015,129.11
  5. Step 5: Solve for x
    x = 141,015,129.11/12,327.39
  6. Step 6: Final answer
    x = 11,439.17

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1.5x scale

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.