Home / 13,514.61-18,658.74-8,736.86

Finding the Fourth Proportional to 13,514.61, 18,658.74 and 8,736.86

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Solution

The fourth proportional to 13,514.61, 18,658.74 and 8,736.86 is: 12,062.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,514.61 : 18,658.74 = 8,736.86 : x
  2. Step 2: Convert to fraction form
    13,514.61/18,658.74 = 8,736.86/x
  3. Step 3: Cross multiply
    13,514.61x = 18,658.74 × 8,736.86
  4. Step 4: Simplify right side
    13,514.61x = 163,018,705.86
  5. Step 5: Solve for x
    x = 163,018,705.86/13,514.61
  6. Step 6: Final answer
    x = 12,062.41

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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.