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Finding the Fourth Proportional to 12,763.12, 19,154.04 and 8,379.04

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Solution

The fourth proportional to 12,763.12, 19,154.04 and 8,379.04 is: 12,574.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,763.12 : 19,154.04 = 8,379.04 : x
  2. Step 2: Convert to fraction form
    12,763.12/19,154.04 = 8,379.04/x
  3. Step 3: Cross multiply
    12,763.12x = 19,154.04 × 8,379.04
  4. Step 4: Simplify right side
    12,763.12x = 160,492,467.32
  5. Step 5: Solve for x
    x = 160,492,467.32/12,763.12
  6. Step 6: Final answer
    x = 12,574.70

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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.