Home / 8,625.24-12,934.98-2,780.58

Finding the Fourth Proportional to 8,625.24, 12,934.98 and 2,780.58

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Solution

The fourth proportional to 8,625.24, 12,934.98 and 2,780.58 is: 4,169.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,625.24 : 12,934.98 = 2,780.58 : x
  2. Step 2: Convert to fraction form
    8,625.24/12,934.98 = 2,780.58/x
  3. Step 3: Cross multiply
    8,625.24x = 12,934.98 × 2,780.58
  4. Step 4: Simplify right side
    8,625.24x = 35,966,746.69
  5. Step 5: Solve for x
    x = 35,966,746.69/8,625.24
  6. Step 6: Final answer
    x = 4,169.94

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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.