Home / 13,668.75-18,855.59-9,184.79

Finding the Fourth Proportional to 13,668.75, 18,855.59 and 9,184.79

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Solution

The fourth proportional to 13,668.75, 18,855.59 and 9,184.79 is: 12,670.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,668.75 : 18,855.59 = 9,184.79 : x
  2. Step 2: Convert to fraction form
    13,668.75/18,855.59 = 9,184.79/x
  3. Step 3: Cross multiply
    13,668.75x = 18,855.59 × 9,184.79
  4. Step 4: Simplify right side
    13,668.75x = 173,184,635.69
  5. Step 5: Solve for x
    x = 173,184,635.69/13,668.75
  6. Step 6: Final answer
    x = 12,670.12

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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.