Home / 13,705.03-18,912.99-7,417.41

Finding the Fourth Proportional to 13,705.03, 18,912.99 and 7,417.41

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Solution

The fourth proportional to 13,705.03, 18,912.99 and 7,417.41 is: 10,236.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,705.03 : 18,912.99 = 7,417.41 : x
  2. Step 2: Convert to fraction form
    13,705.03/18,912.99 = 7,417.41/x
  3. Step 3: Cross multiply
    13,705.03x = 18,912.99 × 7,417.41
  4. Step 4: Simplify right side
    13,705.03x = 140,285,401.16
  5. Step 5: Solve for x
    x = 140,285,401.16/13,705.03
  6. Step 6: Final answer
    x = 10,236.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.