Home / 10,218.43-15,319.84-5,284.92

Finding the Fourth Proportional to 10,218.43, 15,319.84 and 5,284.92

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Solution

The fourth proportional to 10,218.43, 15,319.84 and 5,284.92 is: 7,923.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,218.43 : 15,319.84 = 5,284.92 : x
  2. Step 2: Convert to fraction form
    10,218.43/15,319.84 = 5,284.92/x
  3. Step 3: Cross multiply
    10,218.43x = 15,319.84 × 5,284.92
  4. Step 4: Simplify right side
    10,218.43x = 80,964,128.81
  5. Step 5: Solve for x
    x = 80,964,128.81/10,218.43
  6. Step 6: Final answer
    x = 7,923.34

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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.