Home / 10,518.16-15,786.96-5,327.68

Finding the Fourth Proportional to 10,518.16, 15,786.96 and 5,327.68

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Solution

The fourth proportional to 10,518.16, 15,786.96 and 5,327.68 is: 7,996.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,518.16 : 15,786.96 = 5,327.68 : x
  2. Step 2: Convert to fraction form
    10,518.16/15,786.96 = 5,327.68/x
  3. Step 3: Cross multiply
    10,518.16x = 15,786.96 × 5,327.68
  4. Step 4: Simplify right side
    10,518.16x = 84,107,871.05
  5. Step 5: Solve for x
    x = 84,107,871.05/10,518.16
  6. Step 6: Final answer
    x = 7,996.44

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1.5x scale

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.