Home / 10,214.93-15,319.15-3,287.81

Finding the Fourth Proportional to 10,214.93, 15,319.15 and 3,287.81

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Solution

The fourth proportional to 10,214.93, 15,319.15 and 3,287.81 is: 4,930.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,214.93 : 15,319.15 = 3,287.81 : x
  2. Step 2: Convert to fraction form
    10,214.93/15,319.15 = 3,287.81/x
  3. Step 3: Cross multiply
    10,214.93x = 15,319.15 × 3,287.81
  4. Step 4: Simplify right side
    10,214.93x = 50,366,484.64
  5. Step 5: Solve for x
    x = 50,366,484.64/10,214.93
  6. Step 6: Final answer
    x = 4,930.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.