Home / 12,106.93-18,161.58-4,711.99

Finding the Fourth Proportional to 12,106.93, 18,161.58 and 4,711.99

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Solution

The fourth proportional to 12,106.93, 18,161.58 and 4,711.99 is: 7,068.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,106.93 : 18,161.58 = 4,711.99 : x
  2. Step 2: Convert to fraction form
    12,106.93/18,161.58 = 4,711.99/x
  3. Step 3: Cross multiply
    12,106.93x = 18,161.58 × 4,711.99
  4. Step 4: Simplify right side
    12,106.93x = 85,577,183.34
  5. Step 5: Solve for x
    x = 85,577,183.34/12,106.93
  6. Step 6: Final answer
    x = 7,068.45

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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.