Home / 11,451.29-15,799.68-7,419.33

Finding the Fourth Proportional to 11,451.29, 15,799.68 and 7,419.33

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Solution

The fourth proportional to 11,451.29, 15,799.68 and 7,419.33 is: 10,236.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,451.29 : 15,799.68 = 7,419.33 : x
  2. Step 2: Convert to fraction form
    11,451.29/15,799.68 = 7,419.33/x
  3. Step 3: Cross multiply
    11,451.29x = 15,799.68 × 7,419.33
  4. Step 4: Simplify right side
    11,451.29x = 117,223,039.81
  5. Step 5: Solve for x
    x = 117,223,039.81/11,451.29
  6. Step 6: Final answer
    x = 10,236.67

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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.