Home / 13,077.40-19,687.27-11,914.88

Finding the Fourth Proportional to 13,077.40, 19,687.27 and 11,914.88

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Solution

The fourth proportional to 13,077.40, 19,687.27 and 11,914.88 is: 17,937.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,077.40 : 19,687.27 = 11,914.88 : x
  2. Step 2: Convert to fraction form
    13,077.40/19,687.27 = 11,914.88/x
  3. Step 3: Cross multiply
    13,077.40x = 19,687.27 × 11,914.88
  4. Step 4: Simplify right side
    13,077.40x = 234,571,459.58
  5. Step 5: Solve for x
    x = 234,571,459.58/13,077.40
  6. Step 6: Final answer
    x = 17,937.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.