Home / 13,039.17-17,996.55-7,736.91

Finding the Fourth Proportional to 13,039.17, 17,996.55 and 7,736.91

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Solution

The fourth proportional to 13,039.17, 17,996.55 and 7,736.91 is: 10,678.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,039.17 : 17,996.55 = 7,736.91 : x
  2. Step 2: Convert to fraction form
    13,039.17/17,996.55 = 7,736.91/x
  3. Step 3: Cross multiply
    13,039.17x = 17,996.55 × 7,736.91
  4. Step 4: Simplify right side
    13,039.17x = 139,237,687.66
  5. Step 5: Solve for x
    x = 139,237,687.66/13,039.17
  6. Step 6: Final answer
    x = 10,678.42

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1.5x scale

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.