Home / 8,157.48-11,257.38-4,431.48

Finding the Fourth Proportional to 8,157.48, 11,257.38 and 4,431.48

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Solution

The fourth proportional to 8,157.48, 11,257.38 and 4,431.48 is: 6,115.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,157.48 : 11,257.38 = 4,431.48 : x
  2. Step 2: Convert to fraction form
    8,157.48/11,257.38 = 4,431.48/x
  3. Step 3: Cross multiply
    8,157.48x = 11,257.38 × 4,431.48
  4. Step 4: Simplify right side
    8,157.48x = 49,886,854.32
  5. Step 5: Solve for x
    x = 49,886,854.32/8,157.48
  6. Step 6: Final answer
    x = 6,115.47

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Half scale
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Double scale
Find fourth proportional to 8,158.48, 11,258.76 and 4,432.48
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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.