Home / 13,514.08-18,655.36-8,670.88

Finding the Fourth Proportional to 13,514.08, 18,655.36 and 8,670.88

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Solution

The fourth proportional to 13,514.08, 18,655.36 and 8,670.88 is: 11,969.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,514.08 : 18,655.36 = 8,670.88 : x
  2. Step 2: Convert to fraction form
    13,514.08/18,655.36 = 8,670.88/x
  3. Step 3: Cross multiply
    13,514.08x = 18,655.36 × 8,670.88
  4. Step 4: Simplify right side
    13,514.08x = 161,758,387.92
  5. Step 5: Solve for x
    x = 161,758,387.92/13,514.08
  6. Step 6: Final answer
    x = 11,969.62

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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.