Home / 13,176.64-19,764.81-3,315.70

Finding the Fourth Proportional to 13,176.64, 19,764.81 and 3,315.70

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Solution

The fourth proportional to 13,176.64, 19,764.81 and 3,315.70 is: 4,973.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.64 : 19,764.81 = 3,315.70 : x
  2. Step 2: Convert to fraction form
    13,176.64/19,764.81 = 3,315.70/x
  3. Step 3: Cross multiply
    13,176.64x = 19,764.81 × 3,315.70
  4. Step 4: Simplify right side
    13,176.64x = 65,534,180.52
  5. Step 5: Solve for x
    x = 65,534,180.52/13,176.64
  6. Step 6: Final answer
    x = 4,973.51

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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.