Home / 11,818.76-16,309.69-6,514.07

Finding the Fourth Proportional to 11,818.76, 16,309.69 and 6,514.07

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Solution

The fourth proportional to 11,818.76, 16,309.69 and 6,514.07 is: 8,989.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,818.76 : 16,309.69 = 6,514.07 : x
  2. Step 2: Convert to fraction form
    11,818.76/16,309.69 = 6,514.07/x
  3. Step 3: Cross multiply
    11,818.76x = 16,309.69 × 6,514.07
  4. Step 4: Simplify right side
    11,818.76x = 106,242,364.50
  5. Step 5: Solve for x
    x = 106,242,364.50/11,818.76
  6. Step 6: Final answer
    x = 8,989.30

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Double scale
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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.