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Finding the Fourth Proportional to 12,749, 19,124.22 and 4,541

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Solution

The fourth proportional to 12,749, 19,124.22 and 4,541 is: 6,811.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,749 : 19,124.22 = 4,541 : x
  2. Step 2: Convert to fraction form
    12,749/19,124.22 = 4,541/x
  3. Step 3: Cross multiply
    12,749x = 19,124.22 × 4,541
  4. Step 4: Simplify right side
    12,749x = 86,843,083.02
  5. Step 5: Solve for x
    x = 86,843,083.02/12,749
  6. Step 6: Final answer
    x = 6,811.76

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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.