Home / 12,711.82-19,070.28-4,392.14

Finding the Fourth Proportional to 12,711.82, 19,070.28 and 4,392.14

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Solution

The fourth proportional to 12,711.82, 19,070.28 and 4,392.14 is: 6,589.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,711.82 : 19,070.28 = 4,392.14 : x
  2. Step 2: Convert to fraction form
    12,711.82/19,070.28 = 4,392.14/x
  3. Step 3: Cross multiply
    12,711.82x = 19,070.28 × 4,392.14
  4. Step 4: Simplify right side
    12,711.82x = 83,759,339.60
  5. Step 5: Solve for x
    x = 83,759,339.60/12,711.82
  6. Step 6: Final answer
    x = 6,589.09

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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.