Home / 13,977.05-19,291.05-8,012.70

Finding the Fourth Proportional to 13,977.05, 19,291.05 and 8,012.70

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Solution

The fourth proportional to 13,977.05, 19,291.05 and 8,012.70 is: 11,059.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,977.05 : 19,291.05 = 8,012.70 : x
  2. Step 2: Convert to fraction form
    13,977.05/19,291.05 = 8,012.70/x
  3. Step 3: Cross multiply
    13,977.05x = 19,291.05 × 8,012.70
  4. Step 4: Simplify right side
    13,977.05x = 154,573,396.34
  5. Step 5: Solve for x
    x = 154,573,396.34/13,977.05
  6. Step 6: Final answer
    x = 11,059.09

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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.