Home / 14,139-19,511.37-8,170.50

Finding the Fourth Proportional to 14,139, 19,511.37 and 8,170.50

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Solution

The fourth proportional to 14,139, 19,511.37 and 8,170.50 is: 11,275.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,139 : 19,511.37 = 8,170.50 : x
  2. Step 2: Convert to fraction form
    14,139/19,511.37 = 8,170.50/x
  3. Step 3: Cross multiply
    14,139x = 19,511.37 × 8,170.50
  4. Step 4: Simplify right side
    14,139x = 159,417,648.59
  5. Step 5: Solve for x
    x = 159,417,648.59/14,139
  6. Step 6: Final answer
    x = 11,275.03

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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.