Home / 9,428.38-13,011.56-5,236.63

Finding the Fourth Proportional to 9,428.38, 13,011.56 and 5,236.63

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Solution

The fourth proportional to 9,428.38, 13,011.56 and 5,236.63 is: 7,226.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,428.38 : 13,011.56 = 5,236.63 : x
  2. Step 2: Convert to fraction form
    9,428.38/13,011.56 = 5,236.63/x
  3. Step 3: Cross multiply
    9,428.38x = 13,011.56 × 5,236.63
  4. Step 4: Simplify right side
    9,428.38x = 68,136,725.44
  5. Step 5: Solve for x
    x = 68,136,725.44/9,428.38
  6. Step 6: Final answer
    x = 7,226.77

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Half scale
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Double scale
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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.