Home / 8,255.77-11,391.76-4,718.30

Finding the Fourth Proportional to 8,255.77, 11,391.76 and 4,718.30

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Solution

The fourth proportional to 8,255.77, 11,391.76 and 4,718.30 is: 6,510.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,255.77 : 11,391.76 = 4,718.30 : x
  2. Step 2: Convert to fraction form
    8,255.77/11,391.76 = 4,718.30/x
  3. Step 3: Cross multiply
    8,255.77x = 11,391.76 × 4,718.30
  4. Step 4: Simplify right side
    8,255.77x = 53,749,767.50
  5. Step 5: Solve for x
    x = 53,749,767.50/8,255.77
  6. Step 6: Final answer
    x = 6,510.57

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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.