Home / 9,122.07-12,588.46-5,143.25

Finding the Fourth Proportional to 9,122.07, 12,588.46 and 5,143.25

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Solution

The fourth proportional to 9,122.07, 12,588.46 and 5,143.25 is: 7,097.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,122.07 : 12,588.46 = 5,143.25 : x
  2. Step 2: Convert to fraction form
    9,122.07/12,588.46 = 5,143.25/x
  3. Step 3: Cross multiply
    9,122.07x = 12,588.46 × 5,143.25
  4. Step 4: Simplify right side
    9,122.07x = 64,745,573.63
  5. Step 5: Solve for x
    x = 64,745,573.63/9,122.07
  6. Step 6: Final answer
    x = 7,097.69

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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.