Home / 8,391.48-11,605.32-7,370.88

Finding the Fourth Proportional to 8,391.48, 11,605.32 and 7,370.88

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Solution

The fourth proportional to 8,391.48, 11,605.32 and 7,370.88 is: 10,193.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,391.48 : 11,605.32 = 7,370.88 : x
  2. Step 2: Convert to fraction form
    8,391.48/11,605.32 = 7,370.88/x
  3. Step 3: Cross multiply
    8,391.48x = 11,605.32 × 7,370.88
  4. Step 4: Simplify right side
    8,391.48x = 85,541,421.08
  5. Step 5: Solve for x
    x = 85,541,421.08/8,391.48
  6. Step 6: Final answer
    x = 10,193.84

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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.