Home / 8,391.20-11,580.17-4,806.72

Finding the Fourth Proportional to 8,391.20, 11,580.17 and 4,806.72

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Solution

The fourth proportional to 8,391.20, 11,580.17 and 4,806.72 is: 6,633.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,391.20 : 11,580.17 = 4,806.72 : x
  2. Step 2: Convert to fraction form
    8,391.20/11,580.17 = 4,806.72/x
  3. Step 3: Cross multiply
    8,391.20x = 11,580.17 × 4,806.72
  4. Step 4: Simplify right side
    8,391.20x = 55,662,610.71
  5. Step 5: Solve for x
    x = 55,662,610.71/8,391.20
  6. Step 6: Final answer
    x = 6,633.45

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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.