Home / 14,009.50-21,014.25-3,621.25

Finding the Fourth Proportional to 14,009.50, 21,014.25 and 3,621.25

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Solution

The fourth proportional to 14,009.50, 21,014.25 and 3,621.25 is: 5,431.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,009.50 : 21,014.25 = 3,621.25 : x
  2. Step 2: Convert to fraction form
    14,009.50/21,014.25 = 3,621.25/x
  3. Step 3: Cross multiply
    14,009.50x = 21,014.25 × 3,621.25
  4. Step 4: Simplify right side
    14,009.50x = 76,097,852.81
  5. Step 5: Solve for x
    x = 76,097,852.81/14,009.50
  6. Step 6: Final answer
    x = 5,431.88

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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.