Home / 18,946.38-28,419.57-6,631.50

Finding the Fourth Proportional to 18,946.38, 28,419.57 and 6,631.50

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Solution

The fourth proportional to 18,946.38, 28,419.57 and 6,631.50 is: 9,947.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,946.38 : 28,419.57 = 6,631.50 : x
  2. Step 2: Convert to fraction form
    18,946.38/28,419.57 = 6,631.50/x
  3. Step 3: Cross multiply
    18,946.38x = 28,419.57 × 6,631.50
  4. Step 4: Simplify right side
    18,946.38x = 188,464,378.46
  5. Step 5: Solve for x
    x = 188,464,378.46/18,946.38
  6. Step 6: Final answer
    x = 9,947.25

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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.