Home / 10,712.40-16,065.72-3,786

Finding the Fourth Proportional to 10,712.40, 16,065.72 and 3,786

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Solution

The fourth proportional to 10,712.40, 16,065.72 and 3,786 is: 5,677.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,712.40 : 16,065.72 = 3,786 : x
  2. Step 2: Convert to fraction form
    10,712.40/16,065.72 = 3,786/x
  3. Step 3: Cross multiply
    10,712.40x = 16,065.72 × 3,786
  4. Step 4: Simplify right side
    10,712.40x = 60,824,815.92
  5. Step 5: Solve for x
    x = 60,824,815.92/10,712.40
  6. Step 6: Final answer
    x = 5,677.98

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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.