Home / 13,455.65-20,155.66-7,892.24

Finding the Fourth Proportional to 13,455.65, 20,155.66 and 7,892.24

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Solution

The fourth proportional to 13,455.65, 20,155.66 and 7,892.24 is: 11,822.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,455.65 : 20,155.66 = 7,892.24 : x
  2. Step 2: Convert to fraction form
    13,455.65/20,155.66 = 7,892.24/x
  3. Step 3: Cross multiply
    13,455.65x = 20,155.66 × 7,892.24
  4. Step 4: Simplify right side
    13,455.65x = 159,073,185.57
  5. Step 5: Solve for x
    x = 159,073,185.57/13,455.65
  6. Step 6: Final answer
    x = 11,822.03

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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.