Home / 12,456.02-18,684.79-4,136.76

Finding the Fourth Proportional to 12,456.02, 18,684.79 and 4,136.76

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Solution

The fourth proportional to 12,456.02, 18,684.79 and 4,136.76 is: 6,205.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,456.02 : 18,684.79 = 4,136.76 : x
  2. Step 2: Convert to fraction form
    12,456.02/18,684.79 = 4,136.76/x
  3. Step 3: Cross multiply
    12,456.02x = 18,684.79 × 4,136.76
  4. Step 4: Simplify right side
    12,456.02x = 77,294,551.61
  5. Step 5: Solve for x
    x = 77,294,551.61/12,456.02
  6. Step 6: Final answer
    x = 6,205.40

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Similar ratio
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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.