Home / 7,570.20-11,355.30-5,480.40

Finding the Fourth Proportional to 7,570.20, 11,355.30 and 5,480.40

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Solution

The fourth proportional to 7,570.20, 11,355.30 and 5,480.40 is: 8,220.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,570.20 : 11,355.30 = 5,480.40 : x
  2. Step 2: Convert to fraction form
    7,570.20/11,355.30 = 5,480.40/x
  3. Step 3: Cross multiply
    7,570.20x = 11,355.30 × 5,480.40
  4. Step 4: Simplify right side
    7,570.20x = 62,231,586.12
  5. Step 5: Solve for x
    x = 62,231,586.12/7,570.20
  6. Step 6: Final answer
    x = 8,220.60

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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.