Home / 12,106.10-18,110.55-10,480.70

Finding the Fourth Proportional to 12,106.10, 18,110.55 and 10,480.70

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Solution

The fourth proportional to 12,106.10, 18,110.55 and 10,480.70 is: 15,678.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,106.10 : 18,110.55 = 10,480.70 : x
  2. Step 2: Convert to fraction form
    12,106.10/18,110.55 = 10,480.70/x
  3. Step 3: Cross multiply
    12,106.10x = 18,110.55 × 10,480.70
  4. Step 4: Simplify right side
    12,106.10x = 189,811,241.39
  5. Step 5: Solve for x
    x = 189,811,241.39/12,106.10
  6. Step 6: Final answer
    x = 15,678.98

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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.