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Finding the Fourth Proportional to 13,773, 19,011.24 and 8,107.68

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Solution

The fourth proportional to 13,773, 19,011.24 and 8,107.68 is: 11,191.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,773 : 19,011.24 = 8,107.68 : x
  2. Step 2: Convert to fraction form
    13,773/19,011.24 = 8,107.68/x
  3. Step 3: Cross multiply
    13,773x = 19,011.24 × 8,107.68
  4. Step 4: Simplify right side
    13,773x = 154,137,050.32
  5. Step 5: Solve for x
    x = 154,137,050.32/13,773
  6. Step 6: Final answer
    x = 11,191.25

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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.