Home / 12,258.38-18,385.21-4,761.93

Finding the Fourth Proportional to 12,258.38, 18,385.21 and 4,761.93

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Solution

The fourth proportional to 12,258.38, 18,385.21 and 4,761.93 is: 7,141.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,258.38 : 18,385.21 = 4,761.93 : x
  2. Step 2: Convert to fraction form
    12,258.38/18,385.21 = 4,761.93/x
  3. Step 3: Cross multiply
    12,258.38x = 18,385.21 × 4,761.93
  4. Step 4: Simplify right side
    12,258.38x = 87,549,083.06
  5. Step 5: Solve for x
    x = 87,549,083.06/12,258.38
  6. Step 6: Final answer
    x = 7,141.98

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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.