Home / 13,946.66-19,240.82-8,909.57

Finding the Fourth Proportional to 13,946.66, 19,240.82 and 8,909.57

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Solution

The fourth proportional to 13,946.66, 19,240.82 and 8,909.57 is: 12,291.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,946.66 : 19,240.82 = 8,909.57 : x
  2. Step 2: Convert to fraction form
    13,946.66/19,240.82 = 8,909.57/x
  3. Step 3: Cross multiply
    13,946.66x = 19,240.82 × 8,909.57
  4. Step 4: Simplify right side
    13,946.66x = 171,427,469.61
  5. Step 5: Solve for x
    x = 171,427,469.61/13,946.66
  6. Step 6: Final answer
    x = 12,291.65

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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.