Home / 12,700.43-19,051.56-4,380.33

Finding the Fourth Proportional to 12,700.43, 19,051.56 and 4,380.33

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Solution

The fourth proportional to 12,700.43, 19,051.56 and 4,380.33 is: 6,570.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,700.43 : 19,051.56 = 4,380.33 : x
  2. Step 2: Convert to fraction form
    12,700.43/19,051.56 = 4,380.33/x
  3. Step 3: Cross multiply
    12,700.43x = 19,051.56 × 4,380.33
  4. Step 4: Simplify right side
    12,700.43x = 83,452,083.14
  5. Step 5: Solve for x
    x = 83,452,083.14/12,700.43
  6. Step 6: Final answer
    x = 6,570.81

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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.