Home / 8,515.20-11,750.59-4,738.07

Finding the Fourth Proportional to 8,515.20, 11,750.59 and 4,738.07

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Solution

The fourth proportional to 8,515.20, 11,750.59 and 4,738.07 is: 6,538.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515.20 : 11,750.59 = 4,738.07 : x
  2. Step 2: Convert to fraction form
    8,515.20/11,750.59 = 4,738.07/x
  3. Step 3: Cross multiply
    8,515.20x = 11,750.59 × 4,738.07
  4. Step 4: Simplify right side
    8,515.20x = 55,675,117.96
  5. Step 5: Solve for x
    x = 55,675,117.96/8,515.20
  6. Step 6: Final answer
    x = 6,538.32

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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.