Home / 12,106.68-18,145.80-4,707.60

Finding the Fourth Proportional to 12,106.68, 18,145.80 and 4,707.60

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Solution

The fourth proportional to 12,106.68, 18,145.80 and 4,707.60 is: 7,055.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,106.68 : 18,145.80 = 4,707.60 : x
  2. Step 2: Convert to fraction form
    12,106.68/18,145.80 = 4,707.60/x
  3. Step 3: Cross multiply
    12,106.68x = 18,145.80 × 4,707.60
  4. Step 4: Simplify right side
    12,106.68x = 85,423,168.08
  5. Step 5: Solve for x
    x = 85,423,168.08/12,106.68
  6. Step 6: Final answer
    x = 7,055.87

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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.