Home / 15,765.76-23,648.37-4,078.90

Finding the Fourth Proportional to 15,765.76, 23,648.37 and 4,078.90

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Solution

The fourth proportional to 15,765.76, 23,648.37 and 4,078.90 is: 6,118.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,765.76 : 23,648.37 = 4,078.90 : x
  2. Step 2: Convert to fraction form
    15,765.76/23,648.37 = 4,078.90/x
  3. Step 3: Cross multiply
    15,765.76x = 23,648.37 × 4,078.90
  4. Step 4: Simplify right side
    15,765.76x = 96,459,336.39
  5. Step 5: Solve for x
    x = 96,459,336.39/15,765.76
  6. Step 6: Final answer
    x = 6,118.28

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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.