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Finding the Fourth Proportional to 12,883.62, 17,739.90 and 11,281.10

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Solution

The fourth proportional to 12,883.62, 17,739.90 and 11,281.10 is: 15,533.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,883.62 : 17,739.90 = 11,281.10 : x
  2. Step 2: Convert to fraction form
    12,883.62/17,739.90 = 11,281.10/x
  3. Step 3: Cross multiply
    12,883.62x = 17,739.90 × 11,281.10
  4. Step 4: Simplify right side
    12,883.62x = 200,125,585.89
  5. Step 5: Solve for x
    x = 200,125,585.89/12,883.62
  6. Step 6: Final answer
    x = 15,533.34

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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.