Home / 13,978.41-19,296.63-8,676.35

Finding the Fourth Proportional to 13,978.41, 19,296.63 and 8,676.35

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Solution

The fourth proportional to 13,978.41, 19,296.63 and 8,676.35 is: 11,977.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,978.41 : 19,296.63 = 8,676.35 : x
  2. Step 2: Convert to fraction form
    13,978.41/19,296.63 = 8,676.35/x
  3. Step 3: Cross multiply
    13,978.41x = 19,296.63 × 8,676.35
  4. Step 4: Simplify right side
    13,978.41x = 167,424,291.58
  5. Step 5: Solve for x
    x = 167,424,291.58/13,978.41
  6. Step 6: Final answer
    x = 11,977.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.