Home / 10,905.76-16,360.84-3,509.68

Finding the Fourth Proportional to 10,905.76, 16,360.84 and 3,509.68

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Solution

The fourth proportional to 10,905.76, 16,360.84 and 3,509.68 is: 5,265.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,905.76 : 16,360.84 = 3,509.68 : x
  2. Step 2: Convert to fraction form
    10,905.76/16,360.84 = 3,509.68/x
  3. Step 3: Cross multiply
    10,905.76x = 16,360.84 × 3,509.68
  4. Step 4: Simplify right side
    10,905.76x = 57,421,312.93
  5. Step 5: Solve for x
    x = 57,421,312.93/10,905.76
  6. Step 6: Final answer
    x = 5,265.23

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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.