Home / 13,515.09-18,650.76-7,546.76

Finding the Fourth Proportional to 13,515.09, 18,650.76 and 7,546.76

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Solution

The fourth proportional to 13,515.09, 18,650.76 and 7,546.76 is: 10,414.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,515.09 : 18,650.76 = 7,546.76 : x
  2. Step 2: Convert to fraction form
    13,515.09/18,650.76 = 7,546.76/x
  3. Step 3: Cross multiply
    13,515.09x = 18,650.76 × 7,546.76
  4. Step 4: Simplify right side
    13,515.09x = 140,752,856.16
  5. Step 5: Solve for x
    x = 140,752,856.16/13,515.09
  6. Step 6: Final answer
    x = 10,414.50

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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.