Home / 18,185.08-25,081.18-12,445.94

Finding the Fourth Proportional to 18,185.08, 25,081.18 and 12,445.94

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Solution

The fourth proportional to 18,185.08, 25,081.18 and 12,445.94 is: 17,165.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,185.08 : 25,081.18 = 12,445.94 : x
  2. Step 2: Convert to fraction form
    18,185.08/25,081.18 = 12,445.94/x
  3. Step 3: Cross multiply
    18,185.08x = 25,081.18 × 12,445.94
  4. Step 4: Simplify right side
    18,185.08x = 312,158,861.41
  5. Step 5: Solve for x
    x = 312,158,861.41/18,185.08
  6. Step 6: Final answer
    x = 17,165.66

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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.