Home / 13,668.66-18,814.53-9,885.69

Finding the Fourth Proportional to 13,668.66, 18,814.53 and 9,885.69

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Solution

The fourth proportional to 13,668.66, 18,814.53 and 9,885.69 is: 13,607.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,668.66 : 18,814.53 = 9,885.69 : x
  2. Step 2: Convert to fraction form
    13,668.66/18,814.53 = 9,885.69/x
  3. Step 3: Cross multiply
    13,668.66x = 18,814.53 × 9,885.69
  4. Step 4: Simplify right side
    13,668.66x = 185,994,611.08
  5. Step 5: Solve for x
    x = 185,994,611.08/13,668.66
  6. Step 6: Final answer
    x = 13,607.38

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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.