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Finding the Fourth Proportional to 14,242.64, 19,654.84 and 8,275.44

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Solution

The fourth proportional to 14,242.64, 19,654.84 and 8,275.44 is: 11,420.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,242.64 : 19,654.84 = 8,275.44 : x
  2. Step 2: Convert to fraction form
    14,242.64/19,654.84 = 8,275.44/x
  3. Step 3: Cross multiply
    14,242.64x = 19,654.84 × 8,275.44
  4. Step 4: Simplify right side
    14,242.64x = 162,652,449.13
  5. Step 5: Solve for x
    x = 162,652,449.13/14,242.64
  6. Step 6: Final answer
    x = 11,420.11

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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.