Home / 12,366.18-18,551.43-5,440.50

Finding the Fourth Proportional to 12,366.18, 18,551.43 and 5,440.50

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Solution

The fourth proportional to 12,366.18, 18,551.43 and 5,440.50 is: 8,161.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,366.18 : 18,551.43 = 5,440.50 : x
  2. Step 2: Convert to fraction form
    12,366.18/18,551.43 = 5,440.50/x
  3. Step 3: Cross multiply
    12,366.18x = 18,551.43 × 5,440.50
  4. Step 4: Simplify right side
    12,366.18x = 100,929,054.92
  5. Step 5: Solve for x
    x = 100,929,054.92/12,366.18
  6. Step 6: Final answer
    x = 8,161.70

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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.