Home / 11,297.72-15,585.58-7,108.28

Finding the Fourth Proportional to 11,297.72, 15,585.58 and 7,108.28

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Solution

The fourth proportional to 11,297.72, 15,585.58 and 7,108.28 is: 9,806.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,297.72 : 15,585.58 = 7,108.28 : x
  2. Step 2: Convert to fraction form
    11,297.72/15,585.58 = 7,108.28/x
  3. Step 3: Cross multiply
    11,297.72x = 15,585.58 × 7,108.28
  4. Step 4: Simplify right side
    11,297.72x = 110,786,666.60
  5. Step 5: Solve for x
    x = 110,786,666.60/11,297.72
  6. Step 6: Final answer
    x = 9,806.11

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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.