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Finding the Fourth Proportional to 14,960.16, 20,644.14 and 8,672.40

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Solution

The fourth proportional to 14,960.16, 20,644.14 and 8,672.40 is: 11,967.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,960.16 : 20,644.14 = 8,672.40 : x
  2. Step 2: Convert to fraction form
    14,960.16/20,644.14 = 8,672.40/x
  3. Step 3: Cross multiply
    14,960.16x = 20,644.14 × 8,672.40
  4. Step 4: Simplify right side
    14,960.16x = 179,034,239.74
  5. Step 5: Solve for x
    x = 179,034,239.74/14,960.16
  6. Step 6: Final answer
    x = 11,967.40

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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.