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Finding the Fourth Proportional to 14,573.72, 20,113.44 and 8,287.04

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Solution

The fourth proportional to 14,573.72, 20,113.44 and 8,287.04 is: 11,437.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,573.72 : 20,113.44 = 8,287.04 : x
  2. Step 2: Convert to fraction form
    14,573.72/20,113.44 = 8,287.04/x
  3. Step 3: Cross multiply
    14,573.72x = 20,113.44 × 8,287.04
  4. Step 4: Simplify right side
    14,573.72x = 166,680,881.82
  5. Step 5: Solve for x
    x = 166,680,881.82/14,573.72
  6. Step 6: Final answer
    x = 11,437.09

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Half scale
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Double scale
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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.