Home / 13,705.20-20,551.73-6,312.06

Finding the Fourth Proportional to 13,705.20, 20,551.73 and 6,312.06

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Solution

The fourth proportional to 13,705.20, 20,551.73 and 6,312.06 is: 9,465.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,705.20 : 20,551.73 = 6,312.06 : x
  2. Step 2: Convert to fraction form
    13,705.20/20,551.73 = 6,312.06/x
  3. Step 3: Cross multiply
    13,705.20x = 20,551.73 × 6,312.06
  4. Step 4: Simplify right side
    13,705.20x = 129,723,721.30
  5. Step 5: Solve for x
    x = 129,723,721.30/13,705.20
  6. Step 6: Final answer
    x = 9,465.29

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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.