Home / 19,715.32-27,205.86-11,216.17

Finding the Fourth Proportional to 19,715.32, 27,205.86 and 11,216.17

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Solution

The fourth proportional to 19,715.32, 27,205.86 and 11,216.17 is: 15,477.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,715.32 : 27,205.86 = 11,216.17 : x
  2. Step 2: Convert to fraction form
    19,715.32/27,205.86 = 11,216.17/x
  3. Step 3: Cross multiply
    19,715.32x = 27,205.86 × 11,216.17
  4. Step 4: Simplify right side
    19,715.32x = 305,145,550.76
  5. Step 5: Solve for x
    x = 305,145,550.76/19,715.32
  6. Step 6: Final answer
    x = 15,477.59

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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.