Home / 14,933.85-20,610.10-8,220.84

Finding the Fourth Proportional to 14,933.85, 20,610.10 and 8,220.84

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Solution

The fourth proportional to 14,933.85, 20,610.10 and 8,220.84 is: 11,345.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,933.85 : 20,610.10 = 8,220.84 : x
  2. Step 2: Convert to fraction form
    14,933.85/20,610.10 = 8,220.84/x
  3. Step 3: Cross multiply
    14,933.85x = 20,610.10 × 8,220.84
  4. Step 4: Simplify right side
    14,933.85x = 169,432,334.48
  5. Step 5: Solve for x
    x = 169,432,334.48/14,933.85
  6. Step 6: Final answer
    x = 11,345.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.