Home / 14,431.98-19,916.10-8,144.32

Finding the Fourth Proportional to 14,431.98, 19,916.10 and 8,144.32

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Solution

The fourth proportional to 14,431.98, 19,916.10 and 8,144.32 is: 11,239.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,431.98 : 19,916.10 = 8,144.32 : x
  2. Step 2: Convert to fraction form
    14,431.98/19,916.10 = 8,144.32/x
  3. Step 3: Cross multiply
    14,431.98x = 19,916.10 × 8,144.32
  4. Step 4: Simplify right side
    14,431.98x = 162,203,091.55
  5. Step 5: Solve for x
    x = 162,203,091.55/14,431.98
  6. Step 6: Final answer
    x = 11,239.14

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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.