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Finding the Fourth Proportional to 6,636.39, 9,953.16 and 1,955.10

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Solution

The fourth proportional to 6,636.39, 9,953.16 and 1,955.10 is: 2,932.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,636.39 : 9,953.16 = 1,955.10 : x
  2. Step 2: Convert to fraction form
    6,636.39/9,953.16 = 1,955.10/x
  3. Step 3: Cross multiply
    6,636.39x = 9,953.16 × 1,955.10
  4. Step 4: Simplify right side
    6,636.39x = 19,459,423.12
  5. Step 5: Solve for x
    x = 19,459,423.12/6,636.39
  6. Step 6: Final answer
    x = 2,932.23

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