Home / 9,163.38-12,641.01-5,434.74

Finding the Fourth Proportional to 9,163.38, 12,641.01 and 5,434.74

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Solution

The fourth proportional to 9,163.38, 12,641.01 and 5,434.74 is: 7,497.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,163.38 : 12,641.01 = 5,434.74 : x
  2. Step 2: Convert to fraction form
    9,163.38/12,641.01 = 5,434.74/x
  3. Step 3: Cross multiply
    9,163.38x = 12,641.01 × 5,434.74
  4. Step 4: Simplify right side
    9,163.38x = 68,700,602.69
  5. Step 5: Solve for x
    x = 68,700,602.69/9,163.38
  6. Step 6: Final answer
    x = 7,497.30

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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.