Home / 19,485.64-26,896.26-11,107.72

Finding the Fourth Proportional to 19,485.64, 26,896.26 and 11,107.72

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Solution

The fourth proportional to 19,485.64, 26,896.26 and 11,107.72 is: 15,332.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,485.64 : 26,896.26 = 11,107.72 : x
  2. Step 2: Convert to fraction form
    19,485.64/26,896.26 = 11,107.72/x
  3. Step 3: Cross multiply
    19,485.64x = 26,896.26 × 11,107.72
  4. Step 4: Simplify right side
    19,485.64x = 298,756,125.13
  5. Step 5: Solve for x
    x = 298,756,125.13/19,485.64
  6. Step 6: Final answer
    x = 15,332.12

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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.