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Finding the Fourth Proportional to 15,614.82, 21,548.46 and 8,541.24

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Solution

The fourth proportional to 15,614.82, 21,548.46 and 8,541.24 is: 11,786.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,614.82 : 21,548.46 = 8,541.24 : x
  2. Step 2: Convert to fraction form
    15,614.82/21,548.46 = 8,541.24/x
  3. Step 3: Cross multiply
    15,614.82x = 21,548.46 × 8,541.24
  4. Step 4: Simplify right side
    15,614.82x = 184,050,568.49
  5. Step 5: Solve for x
    x = 184,050,568.49/15,614.82
  6. Step 6: Final answer
    x = 11,786.92

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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.