Home / 13,320.16-19,983.78-4,555.96

Finding the Fourth Proportional to 13,320.16, 19,983.78 and 4,555.96

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Solution

The fourth proportional to 13,320.16, 19,983.78 and 4,555.96 is: 6,835.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320.16 : 19,983.78 = 4,555.96 : x
  2. Step 2: Convert to fraction form
    13,320.16/19,983.78 = 4,555.96/x
  3. Step 3: Cross multiply
    13,320.16x = 19,983.78 × 4,555.96
  4. Step 4: Simplify right side
    13,320.16x = 91,045,302.33
  5. Step 5: Solve for x
    x = 91,045,302.33/13,320.16
  6. Step 6: Final answer
    x = 6,835.15

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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.