Home / 11,416.24-15,750.07-8,439.22

Finding the Fourth Proportional to 11,416.24, 15,750.07 and 8,439.22

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Solution

The fourth proportional to 11,416.24, 15,750.07 and 8,439.22 is: 11,642.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,416.24 : 15,750.07 = 8,439.22 : x
  2. Step 2: Convert to fraction form
    11,416.24/15,750.07 = 8,439.22/x
  3. Step 3: Cross multiply
    11,416.24x = 15,750.07 × 8,439.22
  4. Step 4: Simplify right side
    11,416.24x = 132,918,305.75
  5. Step 5: Solve for x
    x = 132,918,305.75/11,416.24
  6. Step 6: Final answer
    x = 11,642.91

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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.