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Finding the Fourth Proportional to 13,095.52, 18,074.16 and 8,379.64

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Solution

The fourth proportional to 13,095.52, 18,074.16 and 8,379.64 is: 11,565.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,095.52 : 18,074.16 = 8,379.64 : x
  2. Step 2: Convert to fraction form
    13,095.52/18,074.16 = 8,379.64/x
  3. Step 3: Cross multiply
    13,095.52x = 18,074.16 × 8,379.64
  4. Step 4: Simplify right side
    13,095.52x = 151,454,954.10
  5. Step 5: Solve for x
    x = 151,454,954.10/13,095.52
  6. Step 6: Final answer
    x = 11,565.40

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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.