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Finding the Fourth Proportional to 12,591.01, 18,886.51 and 11,548.08

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Solution

The fourth proportional to 12,591.01, 18,886.51 and 11,548.08 is: 17,322.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,591.01 : 18,886.51 = 11,548.08 : x
  2. Step 2: Convert to fraction form
    12,591.01/18,886.51 = 11,548.08/x
  3. Step 3: Cross multiply
    12,591.01x = 18,886.51 × 11,548.08
  4. Step 4: Simplify right side
    12,591.01x = 218,102,928.40
  5. Step 5: Solve for x
    x = 218,102,928.40/12,591.01
  6. Step 6: Final answer
    x = 17,322.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.