Home / 13,265.66-19,898.49-3,905.68

Finding the Fourth Proportional to 13,265.66, 19,898.49 and 3,905.68

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Solution

The fourth proportional to 13,265.66, 19,898.49 and 3,905.68 is: 5,858.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,265.66 : 19,898.49 = 3,905.68 : x
  2. Step 2: Convert to fraction form
    13,265.66/19,898.49 = 3,905.68/x
  3. Step 3: Cross multiply
    13,265.66x = 19,898.49 × 3,905.68
  4. Step 4: Simplify right side
    13,265.66x = 77,717,144.30
  5. Step 5: Solve for x
    x = 77,717,144.30/13,265.66
  6. Step 6: Final answer
    x = 5,858.52

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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.