Home / 9,122.04-12,588.21-5,143.05

Finding the Fourth Proportional to 9,122.04, 12,588.21 and 5,143.05

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Solution

The fourth proportional to 9,122.04, 12,588.21 and 5,143.05 is: 7,097.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,122.04 : 12,588.21 = 5,143.05 : x
  2. Step 2: Convert to fraction form
    9,122.04/12,588.21 = 5,143.05/x
  3. Step 3: Cross multiply
    9,122.04x = 12,588.21 × 5,143.05
  4. Step 4: Simplify right side
    9,122.04x = 64,741,793.44
  5. Step 5: Solve for x
    x = 64,741,793.44/9,122.04
  6. Step 6: Final answer
    x = 7,097.29

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Half scale
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Double scale
Find fourth proportional to 9,123.04, 12,589.59 and 5,144.05
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.