Home / 13,390.48-20,072.22-9,683.65

Finding the Fourth Proportional to 13,390.48, 20,072.22 and 9,683.65

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Solution

The fourth proportional to 13,390.48, 20,072.22 and 9,683.65 is: 14,515.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390.48 : 20,072.22 = 9,683.65 : x
  2. Step 2: Convert to fraction form
    13,390.48/20,072.22 = 9,683.65/x
  3. Step 3: Cross multiply
    13,390.48x = 20,072.22 × 9,683.65
  4. Step 4: Simplify right side
    13,390.48x = 194,372,353.20
  5. Step 5: Solve for x
    x = 194,372,353.20/13,390.48
  6. Step 6: Final answer
    x = 14,515.71

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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.