Home / 9,118.56-13,668.12-4,729.98

Finding the Fourth Proportional to 9,118.56, 13,668.12 and 4,729.98

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Solution

The fourth proportional to 9,118.56, 13,668.12 and 4,729.98 is: 7,089.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,118.56 : 13,668.12 = 4,729.98 : x
  2. Step 2: Convert to fraction form
    9,118.56/13,668.12 = 4,729.98/x
  3. Step 3: Cross multiply
    9,118.56x = 13,668.12 × 4,729.98
  4. Step 4: Simplify right side
    9,118.56x = 64,649,934.24
  5. Step 5: Solve for x
    x = 64,649,934.24/9,118.56
  6. Step 6: Final answer
    x = 7,089.93

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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.