Home / 13,514.04-18,648.36-8,478

Finding the Fourth Proportional to 13,514.04, 18,648.36 and 8,478

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Solution

The fourth proportional to 13,514.04, 18,648.36 and 8,478 is: 11,699.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,514.04 : 18,648.36 = 8,478 : x
  2. Step 2: Convert to fraction form
    13,514.04/18,648.36 = 8,478/x
  3. Step 3: Cross multiply
    13,514.04x = 18,648.36 × 8,478
  4. Step 4: Simplify right side
    13,514.04x = 158,100,796.08
  5. Step 5: Solve for x
    x = 158,100,796.08/13,514.04
  6. Step 6: Final answer
    x = 11,699.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.