Home / 14,119.14-21,185.67-9,985.71

Finding the Fourth Proportional to 14,119.14, 21,185.67 and 9,985.71

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Solution

The fourth proportional to 14,119.14, 21,185.67 and 9,985.71 is: 14,983.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,119.14 : 21,185.67 = 9,985.71 : x
  2. Step 2: Convert to fraction form
    14,119.14/21,185.67 = 9,985.71/x
  3. Step 3: Cross multiply
    14,119.14x = 21,185.67 × 9,985.71
  4. Step 4: Simplify right side
    14,119.14x = 211,553,956.78
  5. Step 5: Solve for x
    x = 211,553,956.78/14,119.14
  6. Step 6: Final answer
    x = 14,983.49

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.