Home / 14,669.51-20,245.55-8,381.88

Finding the Fourth Proportional to 14,669.51, 20,245.55 and 8,381.88

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Solution

The fourth proportional to 14,669.51, 20,245.55 and 8,381.88 is: 11,567.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,669.51 : 20,245.55 = 8,381.88 : x
  2. Step 2: Convert to fraction form
    14,669.51/20,245.55 = 8,381.88/x
  3. Step 3: Cross multiply
    14,669.51x = 20,245.55 × 8,381.88
  4. Step 4: Simplify right side
    14,669.51x = 169,695,728.72
  5. Step 5: Solve for x
    x = 169,695,728.72/14,669.51
  6. Step 6: Final answer
    x = 11,567.92

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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.