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Finding the Fourth Proportional to 14,889.52, 20,526.78 and 12,191.32

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Solution

The fourth proportional to 14,889.52, 20,526.78 and 12,191.32 is: 16,807.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,889.52 : 20,526.78 = 12,191.32 : x
  2. Step 2: Convert to fraction form
    14,889.52/20,526.78 = 12,191.32/x
  3. Step 3: Cross multiply
    14,889.52x = 20,526.78 × 12,191.32
  4. Step 4: Simplify right side
    14,889.52x = 250,248,543.55
  5. Step 5: Solve for x
    x = 250,248,543.55/14,889.52
  6. Step 6: Final answer
    x = 16,807.03

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.