Home / 10,712.76-16,069.28-3,782.40

Finding the Fourth Proportional to 10,712.76, 16,069.28 and 3,782.40

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Solution

The fourth proportional to 10,712.76, 16,069.28 and 3,782.40 is: 5,673.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,712.76 : 16,069.28 = 3,782.40 : x
  2. Step 2: Convert to fraction form
    10,712.76/16,069.28 = 3,782.40/x
  3. Step 3: Cross multiply
    10,712.76x = 16,069.28 × 3,782.40
  4. Step 4: Simplify right side
    10,712.76x = 60,780,444.67
  5. Step 5: Solve for x
    x = 60,780,444.67/10,712.76
  6. Step 6: Final answer
    x = 5,673.65

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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.