Home / 8,426.87-11,636.58-5,245.62

Finding the Fourth Proportional to 8,426.87, 11,636.58 and 5,245.62

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Solution

The fourth proportional to 8,426.87, 11,636.58 and 5,245.62 is: 7,243.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,426.87 : 11,636.58 = 5,245.62 : x
  2. Step 2: Convert to fraction form
    8,426.87/11,636.58 = 5,245.62/x
  3. Step 3: Cross multiply
    8,426.87x = 11,636.58 × 5,245.62
  4. Step 4: Simplify right side
    8,426.87x = 61,041,076.78
  5. Step 5: Solve for x
    x = 61,041,076.78/8,426.87
  6. Step 6: Final answer
    x = 7,243.62

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Half scale
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Double scale
Find fourth proportional to 8,427.87, 11,637.96 and 5,246.62
Similar ratio
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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.