Home / 14,514.58-20,031.77-8,142.87

Finding the Fourth Proportional to 14,514.58, 20,031.77 and 8,142.87

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Solution

The fourth proportional to 14,514.58, 20,031.77 and 8,142.87 is: 11,238.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,514.58 : 20,031.77 = 8,142.87 : x
  2. Step 2: Convert to fraction form
    14,514.58/20,031.77 = 8,142.87/x
  3. Step 3: Cross multiply
    14,514.58x = 20,031.77 × 8,142.87
  4. Step 4: Simplify right side
    14,514.58x = 163,116,008.19
  5. Step 5: Solve for x
    x = 163,116,008.19/14,514.58
  6. Step 6: Final answer
    x = 11,238.08

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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.