Home / 15,685.49-23,528.07-3,998.58

Finding the Fourth Proportional to 15,685.49, 23,528.07 and 3,998.58

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Solution

The fourth proportional to 15,685.49, 23,528.07 and 3,998.58 is: 5,997.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,685.49 : 23,528.07 = 3,998.58 : x
  2. Step 2: Convert to fraction form
    15,685.49/23,528.07 = 3,998.58/x
  3. Step 3: Cross multiply
    15,685.49x = 23,528.07 × 3,998.58
  4. Step 4: Simplify right side
    15,685.49x = 94,078,870.14
  5. Step 5: Solve for x
    x = 94,078,870.14/15,685.49
  6. Step 6: Final answer
    x = 5,997.83

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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.