Home / 10,372.86-15,559.31-6,885.18

Finding the Fourth Proportional to 10,372.86, 15,559.31 and 6,885.18

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Solution

The fourth proportional to 10,372.86, 15,559.31 and 6,885.18 is: 10,327.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,372.86 : 15,559.31 = 6,885.18 : x
  2. Step 2: Convert to fraction form
    10,372.86/15,559.31 = 6,885.18/x
  3. Step 3: Cross multiply
    10,372.86x = 15,559.31 × 6,885.18
  4. Step 4: Simplify right side
    10,372.86x = 107,128,650.03
  5. Step 5: Solve for x
    x = 107,128,650.03/10,372.86
  6. Step 6: Final answer
    x = 10,327.78

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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.