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Finding the Fourth Proportional to 12,667.16, 19,000.20 and 12,370.52

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Solution

The fourth proportional to 12,667.16, 19,000.20 and 12,370.52 is: 18,555.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,667.16 : 19,000.20 = 12,370.52 : x
  2. Step 2: Convert to fraction form
    12,667.16/19,000.20 = 12,370.52/x
  3. Step 3: Cross multiply
    12,667.16x = 19,000.20 × 12,370.52
  4. Step 4: Simplify right side
    12,667.16x = 235,042,354.10
  5. Step 5: Solve for x
    x = 235,042,354.10/12,667.16
  6. Step 6: Final answer
    x = 18,555.25

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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.