Home / 14,081.37-19,431.90-8,031.47

Finding the Fourth Proportional to 14,081.37, 19,431.90 and 8,031.47

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Solution

The fourth proportional to 14,081.37, 19,431.90 and 8,031.47 is: 11,083.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,081.37 : 19,431.90 = 8,031.47 : x
  2. Step 2: Convert to fraction form
    14,081.37/19,431.90 = 8,031.47/x
  3. Step 3: Cross multiply
    14,081.37x = 19,431.90 × 8,031.47
  4. Step 4: Simplify right side
    14,081.37x = 156,066,824.88
  5. Step 5: Solve for x
    x = 156,066,824.88/14,081.37
  6. Step 6: Final answer
    x = 11,083.21

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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.