Home / 13,904.73-19,205.24-10,121.81

Finding the Fourth Proportional to 13,904.73, 19,205.24 and 10,121.81

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Solution

The fourth proportional to 13,904.73, 19,205.24 and 10,121.81 is: 13,980.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,904.73 : 19,205.24 = 10,121.81 : x
  2. Step 2: Convert to fraction form
    13,904.73/19,205.24 = 10,121.81/x
  3. Step 3: Cross multiply
    13,904.73x = 19,205.24 × 10,121.81
  4. Step 4: Simplify right side
    13,904.73x = 194,391,643.65
  5. Step 5: Solve for x
    x = 194,391,643.65/13,904.73
  6. Step 6: Final answer
    x = 13,980.25

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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.