Home / 13,108.76-19,666.01-9,635.48

Finding the Fourth Proportional to 13,108.76, 19,666.01 and 9,635.48

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Solution

The fourth proportional to 13,108.76, 19,666.01 and 9,635.48 is: 14,455.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,108.76 : 19,666.01 = 9,635.48 : x
  2. Step 2: Convert to fraction form
    13,108.76/19,666.01 = 9,635.48/x
  3. Step 3: Cross multiply
    13,108.76x = 19,666.01 × 9,635.48
  4. Step 4: Simplify right side
    13,108.76x = 189,491,371.79
  5. Step 5: Solve for x
    x = 189,491,371.79/13,108.76
  6. Step 6: Final answer
    x = 14,455.33

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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.