Home / 13,157.77-19,732.25-4,270.75

Finding the Fourth Proportional to 13,157.77, 19,732.25 and 4,270.75

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Solution

The fourth proportional to 13,157.77, 19,732.25 and 4,270.75 is: 6,404.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,157.77 : 19,732.25 = 4,270.75 : x
  2. Step 2: Convert to fraction form
    13,157.77/19,732.25 = 4,270.75/x
  3. Step 3: Cross multiply
    13,157.77x = 19,732.25 × 4,270.75
  4. Step 4: Simplify right side
    13,157.77x = 84,271,506.69
  5. Step 5: Solve for x
    x = 84,271,506.69/13,157.77
  6. Step 6: Final answer
    x = 6,404.70

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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.