Home / 13,156.48-19,699.44-7,581.52

Finding the Fourth Proportional to 13,156.48, 19,699.44 and 7,581.52

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Solution

The fourth proportional to 13,156.48, 19,699.44 and 7,581.52 is: 11,351.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,156.48 : 19,699.44 = 7,581.52 : x
  2. Step 2: Convert to fraction form
    13,156.48/19,699.44 = 7,581.52/x
  3. Step 3: Cross multiply
    13,156.48x = 19,699.44 × 7,581.52
  4. Step 4: Simplify right side
    13,156.48x = 149,351,698.35
  5. Step 5: Solve for x
    x = 149,351,698.35/13,156.48
  6. Step 6: Final answer
    x = 11,351.95

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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.