Home / 12,240.96-18,336.74-8,070.68

Finding the Fourth Proportional to 12,240.96, 18,336.74 and 8,070.68

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Solution

The fourth proportional to 12,240.96, 18,336.74 and 8,070.68 is: 12,089.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,240.96 : 18,336.74 = 8,070.68 : x
  2. Step 2: Convert to fraction form
    12,240.96/18,336.74 = 8,070.68/x
  3. Step 3: Cross multiply
    12,240.96x = 18,336.74 × 8,070.68
  4. Step 4: Simplify right side
    12,240.96x = 147,989,960.78
  5. Step 5: Solve for x
    x = 147,989,960.78/12,240.96
  6. Step 6: Final answer
    x = 12,089.73

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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.