Home / 12,957.12-19,419.36-5,552.88

Finding the Fourth Proportional to 12,957.12, 19,419.36 and 5,552.88

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Solution

The fourth proportional to 12,957.12, 19,419.36 and 5,552.88 is: 8,322.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,957.12 : 19,419.36 = 5,552.88 : x
  2. Step 2: Convert to fraction form
    12,957.12/19,419.36 = 5,552.88/x
  3. Step 3: Cross multiply
    12,957.12x = 19,419.36 × 5,552.88
  4. Step 4: Simplify right side
    12,957.12x = 107,833,375.76
  5. Step 5: Solve for x
    x = 107,833,375.76/12,957.12
  6. Step 6: Final answer
    x = 8,322.33

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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.