Home / 15,720.84-23,568-6,829.44

Finding the Fourth Proportional to 15,720.84, 23,568 and 6,829.44

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Solution

The fourth proportional to 15,720.84, 23,568 and 6,829.44 is: 10,238.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,720.84 : 23,568 = 6,829.44 : x
  2. Step 2: Convert to fraction form
    15,720.84/23,568 = 6,829.44/x
  3. Step 3: Cross multiply
    15,720.84x = 23,568 × 6,829.44
  4. Step 4: Simplify right side
    15,720.84x = 160,956,241.92
  5. Step 5: Solve for x
    x = 160,956,241.92/15,720.84
  6. Step 6: Final answer
    x = 10,238.40

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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.