Home / 13,608.71-20,400.76-4,841.57

Finding the Fourth Proportional to 13,608.71, 20,400.76 and 4,841.57

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Solution

The fourth proportional to 13,608.71, 20,400.76 and 4,841.57 is: 7,257.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608.71 : 20,400.76 = 4,841.57 : x
  2. Step 2: Convert to fraction form
    13,608.71/20,400.76 = 4,841.57/x
  3. Step 3: Cross multiply
    13,608.71x = 20,400.76 × 4,841.57
  4. Step 4: Simplify right side
    13,608.71x = 98,771,683.39
  5. Step 5: Solve for x
    x = 98,771,683.39/13,608.71
  6. Step 6: Final answer
    x = 7,257.98

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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.