Home / 11,100.81-15,319.33-6,623.71

Finding the Fourth Proportional to 11,100.81, 15,319.33 and 6,623.71

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Solution

The fourth proportional to 11,100.81, 15,319.33 and 6,623.71 is: 9,140.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,100.81 : 15,319.33 = 6,623.71 : x
  2. Step 2: Convert to fraction form
    11,100.81/15,319.33 = 6,623.71/x
  3. Step 3: Cross multiply
    11,100.81x = 15,319.33 × 6,623.71
  4. Step 4: Simplify right side
    11,100.81x = 101,470,744.46
  5. Step 5: Solve for x
    x = 101,470,744.46/11,100.81
  6. Step 6: Final answer
    x = 9,140.84

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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.