Home / 13,514.90-18,650.88-8,479.32

Finding the Fourth Proportional to 13,514.90, 18,650.88 and 8,479.32

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Solution

The fourth proportional to 13,514.90, 18,650.88 and 8,479.32 is: 11,701.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,514.90 : 18,650.88 = 8,479.32 : x
  2. Step 2: Convert to fraction form
    13,514.90/18,650.88 = 8,479.32/x
  3. Step 3: Cross multiply
    13,514.90x = 18,650.88 × 8,479.32
  4. Step 4: Simplify right side
    13,514.90x = 158,146,779.80
  5. Step 5: Solve for x
    x = 158,146,779.80/13,514.90
  6. Step 6: Final answer
    x = 11,701.66

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1.5x scale

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.