Home / 15,343.25-21,173.25-8,628.69

Finding the Fourth Proportional to 15,343.25, 21,173.25 and 8,628.69

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Solution

The fourth proportional to 15,343.25, 21,173.25 and 8,628.69 is: 11,907.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,343.25 : 21,173.25 = 8,628.69 : x
  2. Step 2: Convert to fraction form
    15,343.25/21,173.25 = 8,628.69/x
  3. Step 3: Cross multiply
    15,343.25x = 21,173.25 × 8,628.69
  4. Step 4: Simplify right side
    15,343.25x = 182,697,410.54
  5. Step 5: Solve for x
    x = 182,697,410.54/15,343.25
  6. Step 6: Final answer
    x = 11,907.35

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.