Home / 8,174.18-11,280.60-5,788.40

Finding the Fourth Proportional to 8,174.18, 11,280.60 and 5,788.40

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Solution

The fourth proportional to 8,174.18, 11,280.60 and 5,788.40 is: 7,988.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,174.18 : 11,280.60 = 5,788.40 : x
  2. Step 2: Convert to fraction form
    8,174.18/11,280.60 = 5,788.40/x
  3. Step 3: Cross multiply
    8,174.18x = 11,280.60 × 5,788.40
  4. Step 4: Simplify right side
    8,174.18x = 65,296,568.64
  5. Step 5: Solve for x
    x = 65,296,568.64/8,174.18
  6. Step 6: Final answer
    x = 7,988.15

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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.