Home / 13,039.48-17,994.31-7,071.12

Finding the Fourth Proportional to 13,039.48, 17,994.31 and 7,071.12

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Solution

The fourth proportional to 13,039.48, 17,994.31 and 7,071.12 is: 9,758.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,039.48 : 17,994.31 = 7,071.12 : x
  2. Step 2: Convert to fraction form
    13,039.48/17,994.31 = 7,071.12/x
  3. Step 3: Cross multiply
    13,039.48x = 17,994.31 × 7,071.12
  4. Step 4: Simplify right side
    13,039.48x = 127,239,866.69
  5. Step 5: Solve for x
    x = 127,239,866.69/13,039.48
  6. Step 6: Final answer
    x = 9,758.05

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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.