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Finding the Fourth Proportional to 12,873.47, 17,773.41 and 9,883.35

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Solution

The fourth proportional to 12,873.47, 17,773.41 and 9,883.35 is: 13,645.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,873.47 : 17,773.41 = 9,883.35 : x
  2. Step 2: Convert to fraction form
    12,873.47/17,773.41 = 9,883.35/x
  3. Step 3: Cross multiply
    12,873.47x = 17,773.41 × 9,883.35
  4. Step 4: Simplify right side
    12,873.47x = 175,660,831.72
  5. Step 5: Solve for x
    x = 175,660,831.72/12,873.47
  6. Step 6: Final answer
    x = 13,645.19

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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.