Home / 12,245.87-18,368.81-4,455.29

Finding the Fourth Proportional to 12,245.87, 18,368.81 and 4,455.29

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Solution

The fourth proportional to 12,245.87, 18,368.81 and 4,455.29 is: 6,682.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,245.87 : 18,368.81 = 4,455.29 : x
  2. Step 2: Convert to fraction form
    12,245.87/18,368.81 = 4,455.29/x
  3. Step 3: Cross multiply
    12,245.87x = 18,368.81 × 4,455.29
  4. Step 4: Simplify right side
    12,245.87x = 81,838,261.38
  5. Step 5: Solve for x
    x = 81,838,261.38/12,245.87
  6. Step 6: Final answer
    x = 6,682.93

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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.