Home / 13,890.49-19,170.27-7,924.23

Finding the Fourth Proportional to 13,890.49, 19,170.27 and 7,924.23

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Solution

The fourth proportional to 13,890.49, 19,170.27 and 7,924.23 is: 10,936.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,890.49 : 19,170.27 = 7,924.23 : x
  2. Step 2: Convert to fraction form
    13,890.49/19,170.27 = 7,924.23/x
  3. Step 3: Cross multiply
    13,890.49x = 19,170.27 × 7,924.23
  4. Step 4: Simplify right side
    13,890.49x = 151,909,628.64
  5. Step 5: Solve for x
    x = 151,909,628.64/13,890.49
  6. Step 6: Final answer
    x = 10,936.23

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Half scale
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Double scale
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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.