Home / 12,854.16-19,279.08-3,618

Finding the Fourth Proportional to 12,854.16, 19,279.08 and 3,618

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Solution

The fourth proportional to 12,854.16, 19,279.08 and 3,618 is: 5,426.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,854.16 : 19,279.08 = 3,618 : x
  2. Step 2: Convert to fraction form
    12,854.16/19,279.08 = 3,618/x
  3. Step 3: Cross multiply
    12,854.16x = 19,279.08 × 3,618
  4. Step 4: Simplify right side
    12,854.16x = 69,751,711.44
  5. Step 5: Solve for x
    x = 69,751,711.44/12,854.16
  6. Step 6: Final answer
    x = 5,426.39

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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.