Home / 13,815.25-19,064.43-7,846.83

Finding the Fourth Proportional to 13,815.25, 19,064.43 and 7,846.83

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Solution

The fourth proportional to 13,815.25, 19,064.43 and 7,846.83 is: 10,828.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,815.25 : 19,064.43 = 7,846.83 : x
  2. Step 2: Convert to fraction form
    13,815.25/19,064.43 = 7,846.83/x
  3. Step 3: Cross multiply
    13,815.25x = 19,064.43 × 7,846.83
  4. Step 4: Simplify right side
    13,815.25x = 149,595,341.26
  5. Step 5: Solve for x
    x = 149,595,341.26/13,815.25
  6. Step 6: Final answer
    x = 10,828.28

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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.