Home / 13,829.32-19,083.16-7,860.63

Finding the Fourth Proportional to 13,829.32, 19,083.16 and 7,860.63

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Solution

The fourth proportional to 13,829.32, 19,083.16 and 7,860.63 is: 10,846.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,829.32 : 19,083.16 = 7,860.63 : x
  2. Step 2: Convert to fraction form
    13,829.32/19,083.16 = 7,860.63/x
  3. Step 3: Cross multiply
    13,829.32x = 19,083.16 × 7,860.63
  4. Step 4: Simplify right side
    13,829.32x = 150,005,659.99
  5. Step 5: Solve for x
    x = 150,005,659.99/13,829.32
  6. Step 6: Final answer
    x = 10,846.93

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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.