Home / 11,020.89-15,202.44-7,037.55

Finding the Fourth Proportional to 11,020.89, 15,202.44 and 7,037.55

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Solution

The fourth proportional to 11,020.89, 15,202.44 and 7,037.55 is: 9,707.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,020.89 : 15,202.44 = 7,037.55 : x
  2. Step 2: Convert to fraction form
    11,020.89/15,202.44 = 7,037.55/x
  3. Step 3: Cross multiply
    11,020.89x = 15,202.44 × 7,037.55
  4. Step 4: Simplify right side
    11,020.89x = 106,987,931.62
  5. Step 5: Solve for x
    x = 106,987,931.62/11,020.89
  6. Step 6: Final answer
    x = 9,707.74

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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.