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Finding the Fourth Proportional to 11,818.68, 16,325.36 and 8,829.32

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Solution

The fourth proportional to 11,818.68, 16,325.36 and 8,829.32 is: 12,196.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,818.68 : 16,325.36 = 8,829.32 : x
  2. Step 2: Convert to fraction form
    11,818.68/16,325.36 = 8,829.32/x
  3. Step 3: Cross multiply
    11,818.68x = 16,325.36 × 8,829.32
  4. Step 4: Simplify right side
    11,818.68x = 144,141,827.56
  5. Step 5: Solve for x
    x = 144,141,827.56/11,818.68
  6. Step 6: Final answer
    x = 12,196.10

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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.