Home / 11,099.45-15,319.38-7,125.59

Finding the Fourth Proportional to 11,099.45, 15,319.38 and 7,125.59

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Solution

The fourth proportional to 11,099.45, 15,319.38 and 7,125.59 is: 9,834.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,099.45 : 15,319.38 = 7,125.59 : x
  2. Step 2: Convert to fraction form
    11,099.45/15,319.38 = 7,125.59/x
  3. Step 3: Cross multiply
    11,099.45x = 15,319.38 × 7,125.59
  4. Step 4: Simplify right side
    11,099.45x = 109,159,544.34
  5. Step 5: Solve for x
    x = 109,159,544.34/11,099.45
  6. Step 6: Final answer
    x = 9,834.68

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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.