Home / 12,379.29-18,574.41-4,998.17

Finding the Fourth Proportional to 12,379.29, 18,574.41 and 4,998.17

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Solution

The fourth proportional to 12,379.29, 18,574.41 and 4,998.17 is: 7,499.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,379.29 : 18,574.41 = 4,998.17 : x
  2. Step 2: Convert to fraction form
    12,379.29/18,574.41 = 4,998.17/x
  3. Step 3: Cross multiply
    12,379.29x = 18,574.41 × 4,998.17
  4. Step 4: Simplify right side
    12,379.29x = 92,837,965.96
  5. Step 5: Solve for x
    x = 92,837,965.96/12,379.29
  6. Step 6: Final answer
    x = 7,499.46

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.