Home / 13,902-20,849.28-4,038.96

Finding the Fourth Proportional to 13,902, 20,849.28 and 4,038.96

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Solution

The fourth proportional to 13,902, 20,849.28 and 4,038.96 is: 6,057.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,902 : 20,849.28 = 4,038.96 : x
  2. Step 2: Convert to fraction form
    13,902/20,849.28 = 4,038.96/x
  3. Step 3: Cross multiply
    13,902x = 20,849.28 × 4,038.96
  4. Step 4: Simplify right side
    13,902x = 84,209,407.95
  5. Step 5: Solve for x
    x = 84,209,407.95/13,902
  6. Step 6: Final answer
    x = 6,057.36

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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.