Home / 11,108.21-15,303.27-7,744.91

Finding the Fourth Proportional to 11,108.21, 15,303.27 and 7,744.91

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Solution

The fourth proportional to 11,108.21, 15,303.27 and 7,744.91 is: 10,669.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,108.21 : 15,303.27 = 7,744.91 : x
  2. Step 2: Convert to fraction form
    11,108.21/15,303.27 = 7,744.91/x
  3. Step 3: Cross multiply
    11,108.21x = 15,303.27 × 7,744.91
  4. Step 4: Simplify right side
    11,108.21x = 118,522,448.86
  5. Step 5: Solve for x
    x = 118,522,448.86/11,108.21
  6. Step 6: Final answer
    x = 10,669.81

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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.