Home / 12,573.15-18,859.75-3,808.14

Finding the Fourth Proportional to 12,573.15, 18,859.75 and 3,808.14

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Solution

The fourth proportional to 12,573.15, 18,859.75 and 3,808.14 is: 5,712.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,573.15 : 18,859.75 = 3,808.14 : x
  2. Step 2: Convert to fraction form
    12,573.15/18,859.75 = 3,808.14/x
  3. Step 3: Cross multiply
    12,573.15x = 18,859.75 × 3,808.14
  4. Step 4: Simplify right side
    12,573.15x = 71,820,474.07
  5. Step 5: Solve for x
    x = 71,820,474.07/12,573.15
  6. Step 6: Final answer
    x = 5,712.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.