Home / 12,436.85-18,657.96-4,116.45

Finding the Fourth Proportional to 12,436.85, 18,657.96 and 4,116.45

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Solution

The fourth proportional to 12,436.85, 18,657.96 and 4,116.45 is: 6,175.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,436.85 : 18,657.96 = 4,116.45 : x
  2. Step 2: Convert to fraction form
    12,436.85/18,657.96 = 4,116.45/x
  3. Step 3: Cross multiply
    12,436.85x = 18,657.96 × 4,116.45
  4. Step 4: Simplify right side
    12,436.85x = 76,804,574.88
  5. Step 5: Solve for x
    x = 76,804,574.88/12,436.85
  6. Step 6: Final answer
    x = 6,175.56

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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.