Home / 10,246.64-15,379.07-5,319.68

Finding the Fourth Proportional to 10,246.64, 15,379.07 and 5,319.68

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Solution

The fourth proportional to 10,246.64, 15,379.07 and 5,319.68 is: 7,984.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,246.64 : 15,379.07 = 5,319.68 : x
  2. Step 2: Convert to fraction form
    10,246.64/15,379.07 = 5,319.68/x
  3. Step 3: Cross multiply
    10,246.64x = 15,379.07 × 5,319.68
  4. Step 4: Simplify right side
    10,246.64x = 81,811,627.60
  5. Step 5: Solve for x
    x = 81,811,627.60/10,246.64
  6. Step 6: Final answer
    x = 7,984.24

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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.