Home / 14,140.11-19,511.18-8,170.62

Finding the Fourth Proportional to 14,140.11, 19,511.18 and 8,170.62

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Solution

The fourth proportional to 14,140.11, 19,511.18 and 8,170.62 is: 11,274.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,140.11 : 19,511.18 = 8,170.62 : x
  2. Step 2: Convert to fraction form
    14,140.11/19,511.18 = 8,170.62/x
  3. Step 3: Cross multiply
    14,140.11x = 19,511.18 × 8,170.62
  4. Step 4: Simplify right side
    14,140.11x = 159,418,427.32
  5. Step 5: Solve for x
    x = 159,418,427.32/14,140.11
  6. Step 6: Final answer
    x = 11,274.20

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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.