Home / 11,546.40-17,319.60-8,047.20

Finding the Fourth Proportional to 11,546.40, 17,319.60 and 8,047.20

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Solution

The fourth proportional to 11,546.40, 17,319.60 and 8,047.20 is: 12,070.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,546.40 : 17,319.60 = 8,047.20 : x
  2. Step 2: Convert to fraction form
    11,546.40/17,319.60 = 8,047.20/x
  3. Step 3: Cross multiply
    11,546.40x = 17,319.60 × 8,047.20
  4. Step 4: Simplify right side
    11,546.40x = 139,374,285.12
  5. Step 5: Solve for x
    x = 139,374,285.12/11,546.40
  6. Step 6: Final answer
    x = 12,070.80

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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.