Home / 12,316.06-18,474.08-3,431.03

Finding the Fourth Proportional to 12,316.06, 18,474.08 and 3,431.03

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Solution

The fourth proportional to 12,316.06, 18,474.08 and 3,431.03 is: 5,146.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,316.06 : 18,474.08 = 3,431.03 : x
  2. Step 2: Convert to fraction form
    12,316.06/18,474.08 = 3,431.03/x
  3. Step 3: Cross multiply
    12,316.06x = 18,474.08 × 3,431.03
  4. Step 4: Simplify right side
    12,316.06x = 63,385,084.71
  5. Step 5: Solve for x
    x = 63,385,084.71/12,316.06
  6. Step 6: Final answer
    x = 5,146.54

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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.