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Finding the Fourth Proportional to 8,538.93, 12,808.95 and 3,607.92

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Solution

The fourth proportional to 8,538.93, 12,808.95 and 3,607.92 is: 5,412.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,538.93 : 12,808.95 = 3,607.92 : x
  2. Step 2: Convert to fraction form
    8,538.93/12,808.95 = 3,607.92/x
  3. Step 3: Cross multiply
    8,538.93x = 12,808.95 × 3,607.92
  4. Step 4: Simplify right side
    8,538.93x = 46,213,666.88
  5. Step 5: Solve for x
    x = 46,213,666.88/8,538.93
  6. Step 6: Final answer
    x = 5,412.11

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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.