Home / 13,079.70-19,619.46-4,315.32

Finding the Fourth Proportional to 13,079.70, 19,619.46 and 4,315.32

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Solution

The fourth proportional to 13,079.70, 19,619.46 and 4,315.32 is: 6,472.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,079.70 : 19,619.46 = 4,315.32 : x
  2. Step 2: Convert to fraction form
    13,079.70/19,619.46 = 4,315.32/x
  3. Step 3: Cross multiply
    13,079.70x = 19,619.46 × 4,315.32
  4. Step 4: Simplify right side
    13,079.70x = 84,664,248.13
  5. Step 5: Solve for x
    x = 84,664,248.13/13,079.70
  6. Step 6: Final answer
    x = 6,472.95

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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.