Home / 10,816.89-16,226.96-9,420.18

Finding the Fourth Proportional to 10,816.89, 16,226.96 and 9,420.18

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Solution

The fourth proportional to 10,816.89, 16,226.96 and 9,420.18 is: 14,131.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,816.89 : 16,226.96 = 9,420.18 : x
  2. Step 2: Convert to fraction form
    10,816.89/16,226.96 = 9,420.18/x
  3. Step 3: Cross multiply
    10,816.89x = 16,226.96 × 9,420.18
  4. Step 4: Simplify right side
    10,816.89x = 152,860,836.95
  5. Step 5: Solve for x
    x = 152,860,836.95/10,816.89
  6. Step 6: Final answer
    x = 14,131.68

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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.