Home / 13,514.24-20,271.12-4,280

Finding the Fourth Proportional to 13,514.24, 20,271.12 and 4,280

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Solution

The fourth proportional to 13,514.24, 20,271.12 and 4,280 is: 6,419.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,514.24 : 20,271.12 = 4,280 : x
  2. Step 2: Convert to fraction form
    13,514.24/20,271.12 = 4,280/x
  3. Step 3: Cross multiply
    13,514.24x = 20,271.12 × 4,280
  4. Step 4: Simplify right side
    13,514.24x = 86,760,393.60
  5. Step 5: Solve for x
    x = 86,760,393.60/13,514.24
  6. Step 6: Final answer
    x = 6,419.92

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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.