Home / 7,720.20-10,654.12-5,033.15

Finding the Fourth Proportional to 7,720.20, 10,654.12 and 5,033.15

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Solution

The fourth proportional to 7,720.20, 10,654.12 and 5,033.15 is: 6,945.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,720.20 : 10,654.12 = 5,033.15 : x
  2. Step 2: Convert to fraction form
    7,720.20/10,654.12 = 5,033.15/x
  3. Step 3: Cross multiply
    7,720.20x = 10,654.12 × 5,033.15
  4. Step 4: Simplify right side
    7,720.20x = 53,623,758.18
  5. Step 5: Solve for x
    x = 53,623,758.18/7,720.20
  6. Step 6: Final answer
    x = 6,945.90

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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.