Home / 13,833.10-19,091.28-7,865.65

Finding the Fourth Proportional to 13,833.10, 19,091.28 and 7,865.65

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Solution

The fourth proportional to 13,833.10, 19,091.28 and 7,865.65 is: 10,855.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,833.10 : 19,091.28 = 7,865.65 : x
  2. Step 2: Convert to fraction form
    13,833.10/19,091.28 = 7,865.65/x
  3. Step 3: Cross multiply
    13,833.10x = 19,091.28 × 7,865.65
  4. Step 4: Simplify right side
    13,833.10x = 150,165,326.53
  5. Step 5: Solve for x
    x = 150,165,326.53/13,833.10
  6. Step 6: Final answer
    x = 10,855.51

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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.