Home / 13,039.61-17,994.67-7,071.28

Finding the Fourth Proportional to 13,039.61, 17,994.67 and 7,071.28

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Solution

The fourth proportional to 13,039.61, 17,994.67 and 7,071.28 is: 9,758.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,039.61 : 17,994.67 = 7,071.28 : x
  2. Step 2: Convert to fraction form
    13,039.61/17,994.67 = 7,071.28/x
  3. Step 3: Cross multiply
    13,039.61x = 17,994.67 × 7,071.28
  4. Step 4: Simplify right side
    13,039.61x = 127,245,354.10
  5. Step 5: Solve for x
    x = 127,245,354.10/13,039.61
  6. Step 6: Final answer
    x = 9,758.37

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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.