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Finding the Fourth Proportional to 11,187, 15,438.06 and 6,474.03

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Solution

The fourth proportional to 11,187, 15,438.06 and 6,474.03 is: 8,934.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187 : 15,438.06 = 6,474.03 : x
  2. Step 2: Convert to fraction form
    11,187/15,438.06 = 6,474.03/x
  3. Step 3: Cross multiply
    11,187x = 15,438.06 × 6,474.03
  4. Step 4: Simplify right side
    11,187x = 99,946,463.58
  5. Step 5: Solve for x
    x = 99,946,463.58/11,187
  6. Step 6: Final answer
    x = 8,934.16

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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.