Home / 13,206.86-19,841.25-12,459.62

Finding the Fourth Proportional to 13,206.86, 19,841.25 and 12,459.62

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Solution

The fourth proportional to 13,206.86, 19,841.25 and 12,459.62 is: 18,718.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206.86 : 19,841.25 = 12,459.62 : x
  2. Step 2: Convert to fraction form
    13,206.86/19,841.25 = 12,459.62/x
  3. Step 3: Cross multiply
    13,206.86x = 19,841.25 × 12,459.62
  4. Step 4: Simplify right side
    13,206.86x = 247,214,435.33
  5. Step 5: Solve for x
    x = 247,214,435.33/13,206.86
  6. Step 6: Final answer
    x = 18,718.64

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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.