Home / 8,436.48-12,653.76-2,280

Finding the Fourth Proportional to 8,436.48, 12,653.76 and 2,280

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Solution

The fourth proportional to 8,436.48, 12,653.76 and 2,280 is: 3,419.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,436.48 : 12,653.76 = 2,280 : x
  2. Step 2: Convert to fraction form
    8,436.48/12,653.76 = 2,280/x
  3. Step 3: Cross multiply
    8,436.48x = 12,653.76 × 2,280
  4. Step 4: Simplify right side
    8,436.48x = 28,850,572.80
  5. Step 5: Solve for x
    x = 28,850,572.80/8,436.48
  6. Step 6: Final answer
    x = 3,419.74

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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.