Home / 13,827.14-19,081.45-7,858.65

Finding the Fourth Proportional to 13,827.14, 19,081.45 and 7,858.65

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Solution

The fourth proportional to 13,827.14, 19,081.45 and 7,858.65 is: 10,844.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,827.14 : 19,081.45 = 7,858.65 : x
  2. Step 2: Convert to fraction form
    13,827.14/19,081.45 = 7,858.65/x
  3. Step 3: Cross multiply
    13,827.14x = 19,081.45 × 7,858.65
  4. Step 4: Simplify right side
    13,827.14x = 149,954,437.04
  5. Step 5: Solve for x
    x = 149,954,437.04/13,827.14
  6. Step 6: Final answer
    x = 10,844.94

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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.