Home / 9,555.40-13,187.16-5,778.71

Finding the Fourth Proportional to 9,555.40, 13,187.16 and 5,778.71

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Solution

The fourth proportional to 9,555.40, 13,187.16 and 5,778.71 is: 7,975.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,555.40 : 13,187.16 = 5,778.71 : x
  2. Step 2: Convert to fraction form
    9,555.40/13,187.16 = 5,778.71/x
  3. Step 3: Cross multiply
    9,555.40x = 13,187.16 × 5,778.71
  4. Step 4: Simplify right side
    9,555.40x = 76,204,773.36
  5. Step 5: Solve for x
    x = 76,204,773.36/9,555.40
  6. Step 6: Final answer
    x = 7,975.05

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Half scale
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Double scale
Find fourth proportional to 9,556.40, 13,188.54 and 5,779.71
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.