Home / 10,933.61-16,355.21-8,281.19

Finding the Fourth Proportional to 10,933.61, 16,355.21 and 8,281.19

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Solution

The fourth proportional to 10,933.61, 16,355.21 and 8,281.19 is: 12,387.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,933.61 : 16,355.21 = 8,281.19 : x
  2. Step 2: Convert to fraction form
    10,933.61/16,355.21 = 8,281.19/x
  3. Step 3: Cross multiply
    10,933.61x = 16,355.21 × 8,281.19
  4. Step 4: Simplify right side
    10,933.61x = 135,440,478.32
  5. Step 5: Solve for x
    x = 135,440,478.32/10,933.61
  6. Step 6: Final answer
    x = 12,387.54

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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.