Home / 13,145.40-19,710.36-4,377.96

Finding the Fourth Proportional to 13,145.40, 19,710.36 and 4,377.96

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Solution

The fourth proportional to 13,145.40, 19,710.36 and 4,377.96 is: 6,564.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,145.40 : 19,710.36 = 4,377.96 : x
  2. Step 2: Convert to fraction form
    13,145.40/19,710.36 = 4,377.96/x
  3. Step 3: Cross multiply
    13,145.40x = 19,710.36 × 4,377.96
  4. Step 4: Simplify right side
    13,145.40x = 86,291,167.67
  5. Step 5: Solve for x
    x = 86,291,167.67/13,145.40
  6. Step 6: Final answer
    x = 6,564.36

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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.