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Finding the Fourth Proportional to 9,308.98, 13,966.50 and 4,379.12

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Solution

The fourth proportional to 9,308.98, 13,966.50 and 4,379.12 is: 6,570.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,308.98 : 13,966.50 = 4,379.12 : x
  2. Step 2: Convert to fraction form
    9,308.98/13,966.50 = 4,379.12/x
  3. Step 3: Cross multiply
    9,308.98x = 13,966.50 × 4,379.12
  4. Step 4: Simplify right side
    9,308.98x = 61,160,979.48
  5. Step 5: Solve for x
    x = 61,160,979.48/9,308.98
  6. Step 6: Final answer
    x = 6,570.11

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Double scale
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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.