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Finding the Fourth Proportional to 9,141.40, 13,712.10 and 3,295.63

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Solution

The fourth proportional to 9,141.40, 13,712.10 and 3,295.63 is: 4,943.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,141.40 : 13,712.10 = 3,295.63 : x
  2. Step 2: Convert to fraction form
    9,141.40/13,712.10 = 3,295.63/x
  3. Step 3: Cross multiply
    9,141.40x = 13,712.10 × 3,295.63
  4. Step 4: Simplify right side
    9,141.40x = 45,190,008.12
  5. Step 5: Solve for x
    x = 45,190,008.12/9,141.40
  6. Step 6: Final answer
    x = 4,943.45

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.