Home / 13,288.39-19,935.32-11,112.32

Finding the Fourth Proportional to 13,288.39, 19,935.32 and 11,112.32

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Solution

The fourth proportional to 13,288.39, 19,935.32 and 11,112.32 is: 16,670.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,288.39 : 19,935.32 = 11,112.32 : x
  2. Step 2: Convert to fraction form
    13,288.39/19,935.32 = 11,112.32/x
  3. Step 3: Cross multiply
    13,288.39x = 19,935.32 × 11,112.32
  4. Step 4: Simplify right side
    13,288.39x = 221,527,655.14
  5. Step 5: Solve for x
    x = 221,527,655.14/13,288.39
  6. Step 6: Final answer
    x = 16,670.77

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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.