Home / 13,202.90-19,800.68-5,305.40

Finding the Fourth Proportional to 13,202.90, 19,800.68 and 5,305.40

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Solution

The fourth proportional to 13,202.90, 19,800.68 and 5,305.40 is: 7,956.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,202.90 : 19,800.68 = 5,305.40 : x
  2. Step 2: Convert to fraction form
    13,202.90/19,800.68 = 5,305.40/x
  3. Step 3: Cross multiply
    13,202.90x = 19,800.68 × 5,305.40
  4. Step 4: Simplify right side
    13,202.90x = 105,050,527.67
  5. Step 5: Solve for x
    x = 105,050,527.67/13,202.90
  6. Step 6: Final answer
    x = 7,956.63

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1.5x scale

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.