Home / 8,190.42-11,302.74-4,653.36

Finding the Fourth Proportional to 8,190.42, 11,302.74 and 4,653.36

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Solution

The fourth proportional to 8,190.42, 11,302.74 and 4,653.36 is: 6,421.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,190.42 : 11,302.74 = 4,653.36 : x
  2. Step 2: Convert to fraction form
    8,190.42/11,302.74 = 4,653.36/x
  3. Step 3: Cross multiply
    8,190.42x = 11,302.74 × 4,653.36
  4. Step 4: Simplify right side
    8,190.42x = 52,595,718.21
  5. Step 5: Solve for x
    x = 52,595,718.21/8,190.42
  6. Step 6: Final answer
    x = 6,421.61

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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.