Home / 13,740.38-20,608.18-6,344.21

Finding the Fourth Proportional to 13,740.38, 20,608.18 and 6,344.21

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Solution

The fourth proportional to 13,740.38, 20,608.18 and 6,344.21 is: 9,515.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,740.38 : 20,608.18 = 6,344.21 : x
  2. Step 2: Convert to fraction form
    13,740.38/20,608.18 = 6,344.21/x
  3. Step 3: Cross multiply
    13,740.38x = 20,608.18 × 6,344.21
  4. Step 4: Simplify right side
    13,740.38x = 130,742,621.64
  5. Step 5: Solve for x
    x = 130,742,621.64/13,740.38
  6. Step 6: Final answer
    x = 9,515.21

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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.