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Finding the Fourth Proportional to 9,145.92, 12,609.90 and 7,465.62

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Solution

The fourth proportional to 9,145.92, 12,609.90 and 7,465.62 is: 10,293.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,145.92 : 12,609.90 = 7,465.62 : x
  2. Step 2: Convert to fraction form
    9,145.92/12,609.90 = 7,465.62/x
  3. Step 3: Cross multiply
    9,145.92x = 12,609.90 × 7,465.62
  4. Step 4: Simplify right side
    9,145.92x = 94,140,721.64
  5. Step 5: Solve for x
    x = 94,140,721.64/9,145.92
  6. Step 6: Final answer
    x = 10,293.19

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Half scale
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Double scale
Find fourth proportional to 9,146.92, 12,611.28 and 7,466.62
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.