Home / 12,877.58-19,316.56-3,643.58

Finding the Fourth Proportional to 12,877.58, 19,316.56 and 3,643.58

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Solution

The fourth proportional to 12,877.58, 19,316.56 and 3,643.58 is: 5,465.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,877.58 : 19,316.56 = 3,643.58 : x
  2. Step 2: Convert to fraction form
    12,877.58/19,316.56 = 3,643.58/x
  3. Step 3: Cross multiply
    12,877.58x = 19,316.56 × 3,643.58
  4. Step 4: Simplify right side
    12,877.58x = 70,381,431.68
  5. Step 5: Solve for x
    x = 70,381,431.68/12,877.58
  6. Step 6: Final answer
    x = 5,465.42

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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.