Home / 11,853.40-16,357.68-6,818.64

Finding the Fourth Proportional to 11,853.40, 16,357.68 and 6,818.64

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Solution

The fourth proportional to 11,853.40, 16,357.68 and 6,818.64 is: 9,409.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,853.40 : 16,357.68 = 6,818.64 : x
  2. Step 2: Convert to fraction form
    11,853.40/16,357.68 = 6,818.64/x
  3. Step 3: Cross multiply
    11,853.40x = 16,357.68 × 6,818.64
  4. Step 4: Simplify right side
    11,853.40x = 111,537,131.16
  5. Step 5: Solve for x
    x = 111,537,131.16/11,853.40
  6. Step 6: Final answer
    x = 9,409.72

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Half scale
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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.