Home / 12,772.39-19,149.04-8,812.35

Finding the Fourth Proportional to 12,772.39, 19,149.04 and 8,812.35

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Solution

The fourth proportional to 12,772.39, 19,149.04 and 8,812.35 is: 13,211.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,772.39 : 19,149.04 = 8,812.35 : x
  2. Step 2: Convert to fraction form
    12,772.39/19,149.04 = 8,812.35/x
  3. Step 3: Cross multiply
    12,772.39x = 19,149.04 × 8,812.35
  4. Step 4: Simplify right side
    12,772.39x = 168,748,042.64
  5. Step 5: Solve for x
    x = 168,748,042.64/12,772.39
  6. Step 6: Final answer
    x = 13,211.94

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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.