Home / 13,185.12-19,783.80-5,788.62

Finding the Fourth Proportional to 13,185.12, 19,783.80 and 5,788.62

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Solution

The fourth proportional to 13,185.12, 19,783.80 and 5,788.62 is: 8,685.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,185.12 : 19,783.80 = 5,788.62 : x
  2. Step 2: Convert to fraction form
    13,185.12/19,783.80 = 5,788.62/x
  3. Step 3: Cross multiply
    13,185.12x = 19,783.80 × 5,788.62
  4. Step 4: Simplify right side
    13,185.12x = 114,520,900.36
  5. Step 5: Solve for x
    x = 114,520,900.36/13,185.12
  6. Step 6: Final answer
    x = 8,685.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.