Home / 13,485.29-20,230.26-7,935.57

Finding the Fourth Proportional to 13,485.29, 20,230.26 and 7,935.57

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Solution

The fourth proportional to 13,485.29, 20,230.26 and 7,935.57 is: 11,904.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,485.29 : 20,230.26 = 7,935.57 : x
  2. Step 2: Convert to fraction form
    13,485.29/20,230.26 = 7,935.57/x
  3. Step 3: Cross multiply
    13,485.29x = 20,230.26 × 7,935.57
  4. Step 4: Simplify right side
    13,485.29x = 160,538,614.59
  5. Step 5: Solve for x
    x = 160,538,614.59/13,485.29
  6. Step 6: Final answer
    x = 11,904.73

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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.