Home / 9,883.45-13,644.12-7,640.26

Finding the Fourth Proportional to 9,883.45, 13,644.12 and 7,640.26

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Solution

The fourth proportional to 9,883.45, 13,644.12 and 7,640.26 is: 10,547.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,883.45 : 13,644.12 = 7,640.26 : x
  2. Step 2: Convert to fraction form
    9,883.45/13,644.12 = 7,640.26/x
  3. Step 3: Cross multiply
    9,883.45x = 13,644.12 × 7,640.26
  4. Step 4: Simplify right side
    9,883.45x = 104,244,624.27
  5. Step 5: Solve for x
    x = 104,244,624.27/9,883.45
  6. Step 6: Final answer
    x = 10,547.39

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Half scale
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Double scale
Find fourth proportional to 9,884.45, 13,645.50 and 7,641.26
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.