Home / 14,081.12-19,431.65-7,707.55

Finding the Fourth Proportional to 14,081.12, 19,431.65 and 7,707.55

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Solution

The fourth proportional to 14,081.12, 19,431.65 and 7,707.55 is: 10,636.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,081.12 : 19,431.65 = 7,707.55 : x
  2. Step 2: Convert to fraction form
    14,081.12/19,431.65 = 7,707.55/x
  3. Step 3: Cross multiply
    14,081.12x = 19,431.65 × 7,707.55
  4. Step 4: Simplify right side
    14,081.12x = 149,770,375.42
  5. Step 5: Solve for x
    x = 149,770,375.42/14,081.12
  6. Step 6: Final answer
    x = 10,636.26

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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.