Home / 13,613.58-20,384.73-8,918.82

Finding the Fourth Proportional to 13,613.58, 20,384.73 and 8,918.82

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Solution

The fourth proportional to 13,613.58, 20,384.73 and 8,918.82 is: 13,354.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,613.58 : 20,384.73 = 8,918.82 : x
  2. Step 2: Convert to fraction form
    13,613.58/20,384.73 = 8,918.82/x
  3. Step 3: Cross multiply
    13,613.58x = 20,384.73 × 8,918.82
  4. Step 4: Simplify right side
    13,613.58x = 181,807,737.62
  5. Step 5: Solve for x
    x = 181,807,737.62/13,613.58
  6. Step 6: Final answer
    x = 13,354.88

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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.