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Finding the Fourth Proportional to 8,813.64, 13,225.86 and 8,743.08

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Solution

The fourth proportional to 8,813.64, 13,225.86 and 8,743.08 is: 13,119.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.64 : 13,225.86 = 8,743.08 : x
  2. Step 2: Convert to fraction form
    8,813.64/13,225.86 = 8,743.08/x
  3. Step 3: Cross multiply
    8,813.64x = 13,225.86 × 8,743.08
  4. Step 4: Simplify right side
    8,813.64x = 115,634,752.05
  5. Step 5: Solve for x
    x = 115,634,752.05/8,813.64
  6. Step 6: Final answer
    x = 13,119.98

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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.