Home / 8,515.70-11,751.33-4,738.88

Finding the Fourth Proportional to 8,515.70, 11,751.33 and 4,738.88

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Solution

The fourth proportional to 8,515.70, 11,751.33 and 4,738.88 is: 6,539.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515.70 : 11,751.33 = 4,738.88 : x
  2. Step 2: Convert to fraction form
    8,515.70/11,751.33 = 4,738.88/x
  3. Step 3: Cross multiply
    8,515.70x = 11,751.33 × 4,738.88
  4. Step 4: Simplify right side
    8,515.70x = 55,688,142.71
  5. Step 5: Solve for x
    x = 55,688,142.71/8,515.70
  6. Step 6: Final answer
    x = 6,539.47

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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.