Home / 13,927.39-19,220.29-9,957.98

Finding the Fourth Proportional to 13,927.39, 19,220.29 and 9,957.98

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Solution

The fourth proportional to 13,927.39, 19,220.29 and 9,957.98 is: 13,742.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,927.39 : 19,220.29 = 9,957.98 : x
  2. Step 2: Convert to fraction form
    13,927.39/19,220.29 = 9,957.98/x
  3. Step 3: Cross multiply
    13,927.39x = 19,220.29 × 9,957.98
  4. Step 4: Simplify right side
    13,927.39x = 191,395,286.57
  5. Step 5: Solve for x
    x = 191,395,286.57/13,927.39
  6. Step 6: Final answer
    x = 13,742.37

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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.