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Finding the Fourth Proportional to 13,482.06, 18,605.07 and 8,775.42

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Solution

The fourth proportional to 13,482.06, 18,605.07 and 8,775.42 is: 12,109.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,482.06 : 18,605.07 = 8,775.42 : x
  2. Step 2: Convert to fraction form
    13,482.06/18,605.07 = 8,775.42/x
  3. Step 3: Cross multiply
    13,482.06x = 18,605.07 × 8,775.42
  4. Step 4: Simplify right side
    13,482.06x = 163,267,303.38
  5. Step 5: Solve for x
    x = 163,267,303.38/13,482.06
  6. Step 6: Final answer
    x = 12,109.97

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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.