Home / 12,219.86-18,296.99-6,364.17

Finding the Fourth Proportional to 12,219.86, 18,296.99 and 6,364.17

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Solution

The fourth proportional to 12,219.86, 18,296.99 and 6,364.17 is: 9,529.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219.86 : 18,296.99 = 6,364.17 : x
  2. Step 2: Convert to fraction form
    12,219.86/18,296.99 = 6,364.17/x
  3. Step 3: Cross multiply
    12,219.86x = 18,296.99 × 6,364.17
  4. Step 4: Simplify right side
    12,219.86x = 116,445,146.89
  5. Step 5: Solve for x
    x = 116,445,146.89/12,219.86
  6. Step 6: Final answer
    x = 9,529.17

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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.