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Finding the Fourth Proportional to 12,657.60, 17,473.44 and 9,435.48

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Solution

The fourth proportional to 12,657.60, 17,473.44 and 9,435.48 is: 13,025.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,657.60 : 17,473.44 = 9,435.48 : x
  2. Step 2: Convert to fraction form
    12,657.60/17,473.44 = 9,435.48/x
  3. Step 3: Cross multiply
    12,657.60x = 17,473.44 × 9,435.48
  4. Step 4: Simplify right side
    12,657.60x = 164,870,293.65
  5. Step 5: Solve for x
    x = 164,870,293.65/12,657.60
  6. Step 6: Final answer
    x = 13,025.40

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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.