Home / 11,513.21-15,887.54-8,527.95

Finding the Fourth Proportional to 11,513.21, 15,887.54 and 8,527.95

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Solution

The fourth proportional to 11,513.21, 15,887.54 and 8,527.95 is: 11,768.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,513.21 : 15,887.54 = 8,527.95 : x
  2. Step 2: Convert to fraction form
    11,513.21/15,887.54 = 8,527.95/x
  3. Step 3: Cross multiply
    11,513.21x = 15,887.54 × 8,527.95
  4. Step 4: Simplify right side
    11,513.21x = 135,488,168.06
  5. Step 5: Solve for x
    x = 135,488,168.06/11,513.21
  6. Step 6: Final answer
    x = 11,768.07

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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.