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Finding the Fourth Proportional to 13,250.64, 18,287.00 and 9,011.11

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Solution

The fourth proportional to 13,250.64, 18,287.00 and 9,011.11 is: 12,436.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,250.64 : 18,287.00 = 9,011.11 : x
  2. Step 2: Convert to fraction form
    13,250.64/18,287.00 = 9,011.11/x
  3. Step 3: Cross multiply
    13,250.64x = 18,287.00 × 9,011.11
  4. Step 4: Simplify right side
    13,250.64x = 164,786,145.38
  5. Step 5: Solve for x
    x = 164,786,145.38/13,250.64
  6. Step 6: Final answer
    x = 12,436.09

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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.