Home / 13,720.96-18,934.98-7,433.34

Finding the Fourth Proportional to 13,720.96, 18,934.98 and 7,433.34

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Solution

The fourth proportional to 13,720.96, 18,934.98 and 7,433.34 is: 10,258.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,720.96 : 18,934.98 = 7,433.34 : x
  2. Step 2: Convert to fraction form
    13,720.96/18,934.98 = 7,433.34/x
  3. Step 3: Cross multiply
    13,720.96x = 18,934.98 × 7,433.34
  4. Step 4: Simplify right side
    13,720.96x = 140,750,144.23
  5. Step 5: Solve for x
    x = 140,750,144.23/13,720.96
  6. Step 6: Final answer
    x = 10,258.04

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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.