Home / 13,870.31-20,808.54-4,008.84

Finding the Fourth Proportional to 13,870.31, 20,808.54 and 4,008.84

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Solution

The fourth proportional to 13,870.31, 20,808.54 and 4,008.84 is: 6,014.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,870.31 : 20,808.54 = 4,008.84 : x
  2. Step 2: Convert to fraction form
    13,870.31/20,808.54 = 4,008.84/x
  3. Step 3: Cross multiply
    13,870.31x = 20,808.54 × 4,008.84
  4. Step 4: Simplify right side
    13,870.31x = 83,418,107.49
  5. Step 5: Solve for x
    x = 83,418,107.49/13,870.31
  6. Step 6: Final answer
    x = 6,014.15

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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.