Home / 11,515.19-15,892.25-6,480.63

Finding the Fourth Proportional to 11,515.19, 15,892.25 and 6,480.63

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Solution

The fourth proportional to 11,515.19, 15,892.25 and 6,480.63 is: 8,944.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,515.19 : 15,892.25 = 6,480.63 : x
  2. Step 2: Convert to fraction form
    11,515.19/15,892.25 = 6,480.63/x
  3. Step 3: Cross multiply
    11,515.19x = 15,892.25 × 6,480.63
  4. Step 4: Simplify right side
    11,515.19x = 102,991,759.71
  5. Step 5: Solve for x
    x = 102,991,759.71/11,515.19
  6. Step 6: Final answer
    x = 8,944.00

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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.