Home / 11,099.63-15,317.51-7,122.33

Finding the Fourth Proportional to 11,099.63, 15,317.51 and 7,122.33

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Solution

The fourth proportional to 11,099.63, 15,317.51 and 7,122.33 is: 9,828.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,099.63 : 15,317.51 = 7,122.33 : x
  2. Step 2: Convert to fraction form
    11,099.63/15,317.51 = 7,122.33/x
  3. Step 3: Cross multiply
    11,099.63x = 15,317.51 × 7,122.33
  4. Step 4: Simplify right side
    11,099.63x = 109,096,325.39
  5. Step 5: Solve for x
    x = 109,096,325.39/11,099.63
  6. Step 6: Final answer
    x = 9,828.82

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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.