Home / 13,996.13-19,314.79-7,708.64

Finding the Fourth Proportional to 13,996.13, 19,314.79 and 7,708.64

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Solution

The fourth proportional to 13,996.13, 19,314.79 and 7,708.64 is: 10,637.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,996.13 : 19,314.79 = 7,708.64 : x
  2. Step 2: Convert to fraction form
    13,996.13/19,314.79 = 7,708.64/x
  3. Step 3: Cross multiply
    13,996.13x = 19,314.79 × 7,708.64
  4. Step 4: Simplify right side
    13,996.13x = 148,890,646.94
  5. Step 5: Solve for x
    x = 148,890,646.94/13,996.13
  6. Step 6: Final answer
    x = 10,637.99

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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.