Home / 14,933.80-20,605.34-8,642.53

Finding the Fourth Proportional to 14,933.80, 20,605.34 and 8,642.53

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Solution

The fourth proportional to 14,933.80, 20,605.34 and 8,642.53 is: 11,924.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,933.80 : 20,605.34 = 8,642.53 : x
  2. Step 2: Convert to fraction form
    14,933.80/20,605.34 = 8,642.53/x
  3. Step 3: Cross multiply
    14,933.80x = 20,605.34 × 8,642.53
  4. Step 4: Simplify right side
    14,933.80x = 178,082,267.86
  5. Step 5: Solve for x
    x = 178,082,267.86/14,933.80
  6. Step 6: Final answer
    x = 11,924.78

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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.