Home / 13,735.19-18,949.21-8,960.75

Finding the Fourth Proportional to 13,735.19, 18,949.21 and 8,960.75

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Solution

The fourth proportional to 13,735.19, 18,949.21 and 8,960.75 is: 12,362.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,735.19 : 18,949.21 = 8,960.75 : x
  2. Step 2: Convert to fraction form
    13,735.19/18,949.21 = 8,960.75/x
  3. Step 3: Cross multiply
    13,735.19x = 18,949.21 × 8,960.75
  4. Step 4: Simplify right side
    13,735.19x = 169,799,088.70
  5. Step 5: Solve for x
    x = 169,799,088.70/13,735.19
  6. Step 6: Final answer
    x = 12,362.34

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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.